/ Dictionary / Index M machinist: Meaning and Definition of Find definitions for: ma•chin•ist Pronunciation: (mu-shē'nist), [key] — n. a person who operates machinery, esp. a skilled operator of machine tools. a person who makes or repairs machines. a warrant officer whose duty is to assist the engineering officer in the engine room. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: machinist (Thesaurus) machine word machismo Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language