[mad-ruh-pawr-ahyt, -pohr-, muh-drep-uh-rahyt]
a sievelike plate in certain echinoderms, through which water passes into the vascular system.
Origin of madreporite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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Historical Examples of madreporite
Note on the aboral surface of the disk a small striated calcareous plate, the madreporite or madreporic plate.Elementary Zoology, Second Edition
Vernon L. Kellogg