/ Dictionary / Index C criminalist: Meaning and Definition of Find definitions for: crim•i•nal•ist Pronunciation: (krim'u-nl-ist), [key] — n. an expert in criminalistics. a person who studies or practices criminology; criminologist. an expert in criminal law. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. criminal court criminalistics Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language