madreporite

[mad-ruh-pawr-ahyt, -pohr-, muh-drep-uh-rahyt]
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noun

a sievelike plate in certain echinoderms, through which water passes into the vascular system.

Origin of madreporite

First recorded in 1795–1805; madrepore + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of madreporite