/ Dictionary / Index C chert: Meaning and Definition of Find definitions for: chert Pronunciation: (chûrt), [key] — n. a compact rock consisting essentially of microcrystalline quartz. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chert (Thesaurus) chersonese cherub Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language