/ Dictionary / Index C crinoid: Meaning and Definition of Find definitions for: cri•noid Pronunciation: (krī'noid, krin'oid), [key] — n. any echinoderm of the class Crinoidea, having a cup-shaped body to which are attached branched, radiating arms, comprising the sea lilies, feather stars, and various fossil forms. —adj. belonging or pertaining to the Crinoidea. lilylike. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: crinoid (Thesaurus) crinogenic crinoline Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language