. Each tube foot is a closed cylinder with muscular walls, having a sucker at the outer end and a bulb-like ampulla at its inner end within the body cavity. Collins Dictionary of Biology, 3rd ed. Background Even though they are commonly called starfish, these animals are known more scientifically as sea stars. Meaning of madreporite for the defined word. General Biology, 11th Edition.St. Madreporite or sieve plate: a small, smooth plate, at the entrance of the sea star's water vascular system, through which the sea star takes in sea water.It's located on the aboral side of the sea star, slightly off the center. ( archaic, paleontology) A fossil stony coral, or a deposit composed of the same. They have a water vascular system. In the ambulacral region in contact with the substrate, there are tube feet which empty and fill with water, thus acting as suckers. The madreporite also may help protect the sea star and keep it functioning properly. Lateral canals branch alternately from the radial canals, each terminating in a muscular sac (or, The madreporite, which is usually located externally, takes in water from outside the body; if internally located, as is the case in many holothurians, fluid is taken from the body cavity. Pick your prefered accent: Alex US English It is visible as a small red or yellow button-like structure, looking like a small wart, on the aboral surface of the central disk of a sea star or sea urchin or the oral surface of Ophiuroidea. In addition to their use in movement, tube feet are also used for gas exchange. Delivered to your inbox! Our editors will review what youve submitted and determine whether to revise the article. Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. Full grammatical hierarchy of Madreporite, /md rpr at, -por-, mdrp rat/. Here youll get most accurate definitions, close synonyms and antonyms, related words, phrases and questions, rhymes, usage index and more. F. madrporite] Freebase Rate this definition: 5.0 / 2 votes Madreporite The madreporite is a lightcolored calcerous opening used to filter water into the water vascular system of echinoderms. These arms are often covered with spines for protection. They can "clean" the animal of algae, larvae and other detritus that settles on the sea star's skin. Starfish (or sea stars) are beautiful marine animals found in a variety of colors, shapes, and sizes. "Sea Star Anatomy 101." 1983. The madreporite is a lightcolored calcerous opening used to filter water into the water vascular system of echinoderms. Usually people know it's meaning, but prefer to use a more spread out synonym. "Sea Star Anatomy 101." American Heritage Dictionary of the English Language, Fifth Edition. You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. Can you tell the "sommeliers" from the "spelunkers"? American Heritage Dictionary of the English Language, 5th Edition. A perforated platelike structure in most echinoderms that forms the intake for their water-vascular systems. Sign up for our weekly newsletters and get: By signing in, you agree to our Terms and Conditions If they are threatened or injured, a sea star may lose its arm or even multiple arms. The madreporite is made of calcium carbonate and is covered in pores. ite (mdr-prt) n. A perforated platelike structure in most echinoderms that forms the intake for their water-vascular systems. The numerical value of madreporite in Chaldean Numerology is: 7, The numerical value of madreporite in Pythagorean Numerology is: 7. It acts like a pressure-equalizing valve. I want to receive exclusive email updates from YourDictionary. [ So called because the perforations resemble those of a madrepore .] a fossil coral Madreporite noun the madreporic plate of echinoderms Etymology: [Cf. They can sense light and dark, but not details. Its main parts are the madreporite, the stone canal, the ring canal, the radial canals, the lateral canals, and the tube feet. Anus. Send us feedback about these examples. STANDS4 LLC, 2023. It's also a noun, more specifically, a countable noun. 1. Yes, that blob in the image is an animal. Entries where "madreporite" occurs: madrepore: a marble with beautiful madrepores of light colour on a dark ground."Derived words & phrases madreporite madrepore (Italian) Noun madrepore (fem.) Madreporite | definition of madreporite by Medical dictionary TheFreeDictionary madreporite Also found in: Dictionary, Encyclopedia, Wikipedia . (in certain echinoderms) a tube lined with calcareous deposits, connecting the madreporite with a circular canal around the mouth. 5, 2023, thoughtco.com/madreporite-definition-2291661. The madreporite is a light colored calcareous opening used to filter water into the water vascular system of echinoderms. Echinoderms don't have a circulatory system of blood. These are very simple eyes, but they're there. They are used for grooming and protection. Privacy Policy. . The definition of madreporite in Dictionary is as: A fossil coral. See if you can find these body parts the next time you see a sea star! The water vascular system of the sea star consists of a series of seawater-filled ducts that function in locomotion and feeding and respiration. Location. All starfish resemble stars, and though the most common have only five arms, some of these animals can grow up to 40 arms. Webster's New World Similar definitions A fossil coral. Jennifer Kennedy, M.S., is an environmental educator specializing in marine life. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. https://www.thefreedictionary.com/madreporite. A porous calcareous plate in most echinoderms, through which seawater enters the water-vascular system. This is a rare but used term. Meaning of madreporite for the defined word. a sievelike plate in certain echinoderms through which water passes into the vascular system. C. V. Mosby . Many sea stars have five arms, but some species may have up to 40. The water vascular system of the sea star consists of a series of seawater-filled ducts that function in locomotion and feeding and respiration. madreporite the porous opening to the hydrocoel in ECHINODERMS. By Jennifer Kennedy Updated on January 27, 2020 The madreporite is an essential part of the circulation system in echinoderms. Definition. sievelike structure through which the water vascular system of an echinoderm opens to the outside. Find similar words to madreporite using the buttons Terms in this set (13) arm/ray help with movement and capture prey madreporite (sieve plate) where water enters in the water vascular system ampulla Fill up with water and then release to tube feet ambulacral groove ite (mdr-prt) n. A perforated platelike structure in most echinoderms that forms the intake for their water-vascular systems. It sucks in water to fill up the tube feet, which extends them. 01 of 08 Sea Cucumbers Are Animals Bob Halstead/Lonely Planet Images/Getty Images One of the most surprising things about sea cucumbers may be that they are animals, not plants. Sea stars have a tough, spiny covering and a soft underside. Louis, MO. https://www.definitions.net/definition/madreporite. 2. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are members of the largest crinoid order, Comatulida. madrepore + -ite entry 1 (segment); from the resemblances of the perforations to those of a madrepore. Once the water is inside the echinoderm's body, it flows into canals throughout the body. Omissions? Learn a new word every day. [3] Experimental blocking of the madreporite of the sea urchin Strongylocentrotus droebachiensis caused the similar result of weight loss in the sea urchins, although the madreporite has significantly less of an impact on fluid regulation in sea urchins than sea stars.[4]. From the radial canals extend many lateral canals, each of which leads to a tube foot. We're doing our best to make sure our content is useful, accurate and safe.If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly. It also looks grooved like some stony corals. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. It acts like a pressure-equalizing valve. where is the madreporite located on a starfish? Others (e.g., blood stars) have spines so small that their skin appears smooth. Definition 1 / 29 aboral Click the card to flip Flashcards Learn Test Match Created by helmckil Terms in this set (29) The madreporite and anus are both located on the -------- surface of a starfish. This article about anatomy of the phylum Echinodermata is a stub. James St. John/CC BY 2.0/Wikimedia Commons, Jerry Kirkhart/(CC BY 2.0)via Wikimedia Commons. The water brought into the madreporite flows into a ring canal, which surrounds the sea star's central disk. W. G. Hale, V. A. Saunders, J. P. Margham 2005 Want to thank TFD for its existence? All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Location. Ray. Sea stars don't have a circulatory system like we do. Madreporites | definition of madreporites by Medical dictionary madreporite (redirected from madreporites) Also found in: Dictionary, Encyclopedia . Pedicellariae are pincer-like structures on the skin of some sea star species. Wiktionary Advertisement Other Word Forms of Madreporite Noun Singular: madreporite Plural: madreporites Origin of Madreporite Five or more radial canals extend from the ring canal, one in each arm above the ambulacral groove. Each tube foot is a closed cylinder with muscular walls, having a sucker at the outer end and a bulb-like ampulla at its inner end within the body cavity. Long canals radiate from the water ring into each arm. Let us know if you have suggestions to improve this article (requires login). This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Sea cucumbers have a madreporite, but it's located inside the body. Retrieved from https://www.thoughtco.com/madreporite-definition-2291661. 2023. ThoughtCo. Word Panda provides you with a huge database of English words. ite ma-dr-pr-t : a perforated or porous body that is situated at the distal end of the stone canal in echinoderms Example Sentences Recent Examples on the Web The arm opposite the madreporite is arm number 1, and the rest are numbered clockwise. Two arms closest to the madreporite. madreporite porous plate leading to the watervascular system of certain echinoderms, such as starfish Source: Noland, George B. You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. This means that when they feed, they can stick their stomach outside their body. Echinodermata are exclusively marine organisms. https://www.thoughtco.com/madreporite-definition-2291661 (accessed June 20, 2023). "Madreporite Definition and Examples." The name of this structure came from its resemblance to a genus of stony corals called madreporite. It is often made up of a color that contrasts with the rest of the sea star (e.g., a bright white, yellow, orange, etc.). Ophiuroids have little importance in human commerce but they are very important in the diets of many crustaceans and fishes. Tube feet seem to be more complex than that, though. a sievelike plate in certain echinoderms, through which water passes into the vascular system. From this, it derives its name. All rights reserved. Water can go both in and out through this part. Term. There are about 1,500 species of sea cucumbers and they display a variety of colors, shapes, and sizes. Britannica.com: Encyclopedia article about madreporite. Source for information on madreporite: A Dictionary of Zoology dictionary. The radial canals feed into lateral canals extending into tube feet, each of which has an ampulla. Instead, they rely on water for theircirculatory system, which is called a water vascular system. If you are able to hold a sea star, look for its eye spot. Web. The madreporite on asea star(starfish) is often visible as a small, smooth spot on the sea star's upper side, located off-center. These eye spots are located on the tip of each arm. Kennedy, Jennifer. Asteroidea's Water Vascular System The central disk contains the madreporite, an opening that lets water into the asteroid's water vascular system. The seawater that sea stars need to survive is brought into their body via a small bony plate called a madreporite, or sieve plate. It is visible as a small red or yellow button-like structure, looking like a small wart, on the aboral surface of the central disk of a sea star. Jennifer Kennedy, M.S., is an environmental educator specializing in marine life. They do not have gills, fins, or even a skeleton. Yes! Echinoderms: Starfish, Sand Dollars, and Sea Urchins, Definition and Examples of Radial Symmetry, Animals of Australia's Great Barrier Reef, Secrets of the Starfish Sieve Plate & Madreporite Mysteries, M.S., Resource Administration and Management, University of New Hampshire, B.S., Natural Resources, Cornell University. "madreporite." Ophiuroids lack eyes but the epidermis is sensitive to light and other stimuli. and Through this plate, which is also called a sieve plate, the echinoderm draws in seawater and expels water to fuel its vascular system. A fossil coral.. Madreporite Meaning. Definition. Definitions.net. St. Louis, MO. Starfish have a small wart-like valve called a, Post the Definition of madreporite to Facebook, Share the Definition of madreporite on Twitter, Palter, Dissemble, and Other Words for Lying, Skunk, Bayou, and Other Words with Native American Origins, Words For Things You Didn't Know Have Names, Vol. Water drawn in through the madreporite passes intoTiedemann's bodies, which are pockets where the water picks upamoebocytes, cells that can move throughout the body and help with different functions. The madreporite / mdrprat / [1] is a light colored calcareous opening used to filter water into the water vascular system of echinoderms. the opening which allows water to filter into the water vascular system of echinoderms, a porous calcareous plate in most echinoderms, through which the sea enters the water-vascular system. A quiz to (peak/peek/pique) your interest. It acts like a pressure-equalizing valve. It acts like a pressure-equalizing valve. So, although a sea star's mouth is relatively small, they can digest their prey outside their body, making it possible for them to eat prey that is larger than their mouths. Everything you always wanted to know. (C) 2023 Word Panda. The sieve-like madreporite allows entry of seawater into the stone canal, which connects to the ring canal around the mouth. The madreporite/mdrprat/ is a lightcolored calcerous opening used to filter water into the water vascular system of echinoderms. https://www.thoughtco.com/starfish-anatomy-2291457 (accessed June 20, 2023). The stone canal is surrounded by a wider canal, called axial sinus, the wall of which becomes folded to form the axial organ or . ( zoology) A calcareous opening in the body of echinoderms which connects the water vascular system to the environment. One interesting feature of sea stars is that they can evert their stomach. Sea stars are echinoderms, which means they are related to sea urchins, sand dollars, basket stars, brittle stars, and sea cucumbers. 2. Corrections? Echinodermata are so named owing to their spiny skin (from the Greek "echinos" meaning "spiny" and "dermos" meaning "skin"), and this phylum is a collection of about 7,000 described living species. From this, it derives its name. Copyright 2016 by Houghton Mifflin Harcourt Publishing Company. madreporite - WordReference English dictionary, questions, discussion and forums. madreporites: madreporites (English) Noun madreporites Plural of madreporite. A pretty common term. (Biology) the opening which allows water to filter into the water vascular system of echinoderms. From there, it moves into radial canals in the sea star's arms and then into its tube feet, which are shown in the next slide. American Heritage Dictionary of the English Language, 5th Edition. 20 Jun 2023. [ So called because the perforations resemble those of a madrepore .] "Madreporite Definition and Examples." Kennedy, Jennifer. Please enter your email to receive the reset link. Madreporite Definition and Examples. So called because the perforations resemble those of a madrepore, From Get instant definitions for any word that hits you anywhere on the web. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'madreporite.' It is visible as a small red or yellow button-like structure, looking like a small wart, on the aboral surface of the central disk of a sea star or sea urchin or the oral surface of Ophiuroidea. To retract the tube feet, it uses muscles. It is visible as a small red or yellow button-like structure, looking like a small wart, on the aboral surface of the central disk of a sea star. CallUrl('www2>estrellamountain>eduhtml',0), In these animals, water enters through a structure called the madreporite, passes through channels and reaches the ambulacral feet along the undersurface of the body. They are highly regenerative. Grammatically, this word "madreporite" is a morpheme, more specifically, a suffixe. Collins Dictionary of Biology, 3rd ed. When 'thingamajig' and 'thingamabob' just won't do, A simple way to keep them apart. Kennedy, Jennifer. But the water doesn't flow freely in and out, it flows in and out through a valve, which is the madreporite. 5 extensions that you see on the starfish. It is perforated by pores, called the madreporic pores, which lead into madreporic ampulla or vesicle from where the stone canal starts. Some animals, like some large species of sea stars, may have multiple madreporites. porous, button-shaped plate, called the madreporite, which is united via a duct (the stone canal) with a circular canal (ring canal) that circumvents the mouth. What is what? Top Definitions Quiz Examples madreporite [ mad-r uh-pawr-ahyt, -pohr-, m uh- drep- uh-rahyt ] noun a sievelike plate in certain echinoderms, through which water passes into the vascular system. Stone Canal: a tube connecting the sea star's madreporite to its ring canal that's the second part of the sea star's water vascular system. They also usually have spines. Subscribe to America's largest dictionary and get thousands more definitions and advanced searchad free! Dictionary entries. adjective verb adverb pronoun preposition conjunction determiner exclamation Full grammatical hierarchy of Madreporite madreporite popularity A pretty common term. Noun Filter noun A porous calcareous plate in most echinoderms, through which seawater enters the water-vascular system. Close up, it is visibly structured, resembling a "madrepore" colony. Not to worryit will grow back! Working their tube feet in synch, sea stars can produce the enormous strength and adhesionneeded to open up their bivalve prey. Improve your lexicon with Word Panda. From the radial canals extend many lateral canals, each of which leads to a tube foot. Water enters on the aboral side through the sieve plate, which is also known as the madreporite.Water passes through a stone canal to a ring canal and into the radial canals in each arm. Experimental blocking of the madreporite of the sea urchin Strongylocentrotus droebachiensis caused the similar result of weight loss in the sea urchins, although the madreporite has significantly less of an impact on fluid regulation in sea urchins than sea stars. There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Term Word in Definition Translations Vocabulary How to properly pronounce madreporite? 1983. Accessed 20 Jun. The madreporite is made of calcium carbonate and is covered in pores. Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. C. V. Mosby CallUrl('www>webref>orghtm',0), Water enters on the aboral side through the sieve plate, which is also known as the madreporite. Of Zoology Dictionary are beautiful marine animals found in a variety of,... In Dictionary is as: a fossil coral of certain echinoderms, such starfish... They can stick their stomach outside their body by pores, which is called a water system..., Encyclopedia, Wikipedia the `` spelunkers '' are commonly called starfish, these animals are known scientifically! Background Even though they are very simple eyes, but it 's located inside the echinoderm body... To thank TFD for its eye spot water brought into the water vascular system an... Which lead into madreporic ampulla or vesicle from where the stone canal, which extends them able to a! Light colored calcareous opening used to filter water into the madreporite is made of carbonate. Retract the tube feet seem to be more complex than that,.... Do n't have a circulatory system of echinoderms which connects the water does flow... The madreporic pores, called the madreporic pores, called the madreporic plate of echinoderms Source! May help protect the sea star to those of a series of seawater-filled ducts function. Movement, tube feet, each of which leads to a tube foot in marine.. Though they are commonly called starfish, these animals are known more scientifically sea. One interesting feature of sea stars do n't have a circulatory system like we do structure! Instead, they can sense light and dark, but it 's inside. 2023 ) but not details stone canal starts thousands more madreporite definition and advanced searchad free, discussion and.... Popularity a pretty common term canal, which is called a water vascular system of echinoderms '' the animal algae... Soft underside other stimuli, a simple way to keep them apart illustrate current usage of the perforations those., called the madreporic plate of echinoderms which connects to the hydrocoel echinoderms. There are about 1,500 species of sea stars ) are beautiful marine animals found in: Dictionary, thesaurus literature. N'T have a tough, spiny covering and a soft underside ( Zoology ) a coral! For its eye spot, sea stars is that they can evert their stomach outside their body Echinodermata a... Is: 7 help protect the sea star consists of a madrepore. our editors will what! Noun a porous calcareous plate in certain echinoderms, such as starfish:! Shapes, and sizes into a ring canal, which surrounds the sea star consists of a series of ducts. The outside because the perforations resemble those of a madrepore. exclamation full grammatical hierarchy madreporite. Wikimedia Commons of a madrepore. algae, larvae and other reference data is for informational purposes only a... [ So called because the perforations resemble those of a madrepore. s also a,... So small that their skin appears smooth a simple way to keep them apart porous. 20, 2023 ) 2023 ) a soft underside `` sommeliers '' from the radial canals feed into lateral extending. J. P. Margham 2005 want to receive exclusive email updates from YourDictionary starts... Because the perforations to those of Merriam-Webster or its editors meaning, but prefer to a... Illustrate current usage of the English Language, 5th Edition: Noland, George B all content on this,. Of many crustaceans and fishes noun filter noun a porous calcareous plate in most echinoderms, such starfish! Definitions a fossil coral madreporite noun the madreporic pores, called the madreporic pores, which connects the!: //www.thoughtco.com/starfish-anatomy-2291457 ( accessed June 20, 2023 ) usually people know it & # x27 ; s meaning but. A fossil stony coral, or a deposit composed of the sea star part of the star... Some animals, like some large species of sea cucumbers and they a..., Encyclopedia, Wikipedia Dictionary is as: a fossil coral ( Biology ) the opening allows! These eye spots are located on the skin of some sea star 's central disk have. ( Zoology ) a fossil stony coral, or a deposit composed the! A lightcolored calcerous opening used to filter water into the madreporite is made of calcium and. Radiate from the radial canals feed into lateral canals extending into tube feet seem to be complex! A stub n't do, a suffixe about 1,500 species of sea cucumbers have a circulatory system certain! The water-vascular system epidermis is sensitive to light and other detritus that settles on tip. The examples do not represent those of Merriam-Webster or its editors body of Etymology. Circulation system in echinoderms which surrounds the sea star, look for its eye spot //www.thoughtco.com/madreporite-definition-2291661 ( June. System to the hydrocoel in echinoderms the outside on January 27, 2020 the madreporite is made of calcium and. System, which extends them adverb pronoun preposition conjunction determiner exclamation full grammatical hierarchy madreporite... The tip of each arm represent those of Merriam-Webster or its editors clean '' the animal of algae, and... Hierarchy of madreporite, /md rpr at, -por-, mdrp rat/ star species which passes... Not have gills, fins, or a deposit composed of the resemble. Canal around the mouth system, which is the madreporite is made of calcium carbonate is! Programmatically compiled from various online sources to illustrate current usage of the word 'madreporite. when they,! A ring canal around the mouth coral madreporite noun the madreporic plate echinoderms! John/Cc by 2.0/Wikimedia Commons, Jerry Kirkhart/ ( CC by 2.0 ) via Wikimedia Commons Merriam-Webster or its.. ) via Wikimedia Commons blob in the examples do not have gills, fins, or a... Commons, Jerry Kirkhart/ ( CC by 2.0 ) via Wikimedia Commons their!, discussion and forums compiled from various online sources to illustrate current usage of the same other detritus settles. Is called a water vascular system numerical value of madreporite tube lined with deposits... Sieve-Like madreporite allows entry of seawater into the vascular system of certain,. System, which is called a water vascular system of echinoderms skin of some sea star, look its!, each of which leads to a tube foot largest Dictionary and get thousands more definitions advanced. But some species may have multiple madreporites have up to 40, /md rpr at,,! Segment ) ; from the radial canals feed into lateral canals, each of which leads a... Brought into the vascular system: //www.thoughtco.com/madreporite-definition-2291661 ( accessed June 20, 2023 ) English! Their water-vascular systems the environment madreporite/mdrprat/ is a morpheme, more specifically, a simple way keep. The tip of each arm stony corals called madreporite, -por-, rat/. Subscribe to America 's largest Dictionary and get thousands more definitions and madreporite definition searchad free Zoology ) tube! More definitions and advanced searchad free system like we do ( CC by 2.0 ) via Wikimedia Commons hydrocoel... Commons, Jerry Kirkhart/ ( CC by 2.0 ) via Wikimedia Commons canal starts and adhesionneeded open. In Chaldean Numerology is: 7, the numerical value of madreporite, /md rpr at, -por-, rat/!, fins, or Even a skeleton, shapes, and other detritus that settles on the sea star of... Let us know if you are able to hold a sea star 's skin to hold sea... Known more scientifically as sea stars, 2023 ) hydrocoel in echinoderms, -por-, mdrp rat/ and display... June 20, 2023 ) animals, like some large species of sea cucumbers and they a... Found in: Dictionary, questions, discussion and forums is made of calcium carbonate is... As: a Dictionary of the English Language, Fifth Edition 's central disk noun... Please enter your email to receive exclusive email updates from YourDictionary verb adverb pronoun preposition conjunction determiner exclamation grammatical. Detritus that settles on the sea star, look for its eye spot conjunction determiner exclamation full grammatical of... Tube lined with calcareous deposits, connecting the madreporite is made of calcium carbonate and is covered pores... Of stony corals called madreporite content on this website, including Dictionary, thesaurus literature! English ) noun madreporites Plural of madreporite in Dictionary is as: fossil. Madreporites by Medical Dictionary madreporite ( redirected from madreporites ) also found in Dictionary! Ophiuroids lack eyes but the water vascular system to the hydrocoel in echinoderms ( accessed 20! The diets of many crustaceans and fishes it sucks in water to into! Are commonly madreporite definition starfish, these animals are known more scientifically as sea have... S New World Similar definitions a fossil coral `` madrepore '' colony M.S. is..., 2020 the madreporite is a light colored calcareous opening in the madreporite definition of many crustaceans and fishes water n't... ) have spines So small that their skin appears smooth to 40 canals extending into tube feet, which them!, these animals are known more scientifically as sea stars have five arms, but prefer use., more specifically, a countable noun a perforated platelike structure in echinoderms... Receive the reset link ducts that function in locomotion and feeding and respiration stars have a system... Calcium carbonate and is covered in pores 2023 ) value of madreporite, /md rpr at -por-! See if you can find these body parts the next time you see a sea star central. An essential part of the English Language, 5th Edition tough, spiny covering a... Biology ) the opening which allows water to filter water into the vascular! Madreporites ( English ) noun madreporites Plural of madreporite madreporite popularity a pretty common term, blood stars are... An echinoderm opens to the ring canal, which connects the water vascular system of echinoderms any opinions in.
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