madreporite
noun
mad·re·por·ite
ˈma-drə-ˌpȯr-ˌīt 
: a perforated or porous body that is situated at the distal end of the stone canal in echinoderms
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Starfish have a small wart-like valve called a madreporite, which allows water into their bodies.
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Ed Yong, Discover Magazine, 17 Jan. 2012
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Ed Yong, Discover Magazine, 17 Jan. 2012
Cite this Entry
“Madreporite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/madreporite. Accessed 10 Sep. 2025.
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