/ Dictionary / Index A aspirator: Meaning and Definition of Find definitions for: as•pi•ra•tor Pronunciation: (as'pu-rā"tur), [key] — n. an apparatus or device employing suction. a suction pump that operates by the pressure differential created by the high-speed flow of a fluid past an intake orifice. an instrument for removing body fluids by suction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aspirator (Thesaurus) aspiration aspiratory Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language