n.
Pronunciation: ' ma-dr ə - ˌ po ̇ r- ˌ ī t
Function: noun
Etymology: International Scientific Vocabulary madrepore + 1 -ite (segment); from the resemblances of the perforations to those of a madrepore
Date: 1877
: a perforated or porous body that is situated at the distal end of the stone canal in echinoderms