plural noun

: a large order of regular Paleozoic Echinoidea

Word History


New Latin perischo- (from Greek perischesis surrounding, from periechein, perischein to surround—from peri- + echein, schein to have, hold—+ -sis) + echin- + -oida

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Dictionary Entries Near Perischoechinoida

Cite this Entry

“Perischoechinoida.” Dictionary, Merriam-Webster, Accessed 14 Apr. 2024.

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