/ Dictionary / Index C cnidocyst: Meaning and Definition of Find definitions for: cni•do•cyst Pronunciation: (nī'du-sist"), [key] — n. Zool. a nematocyst. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cnidocil cnidogenous Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language