/ Dictionary / Index M milliwatt: Meaning and Definition of Find definitions for: mil•li•watt Pronunciation: (mil'u-wot"), [key] — n. a unit of power equal to one thousandth of a watt. Abbr.: mW Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: milliwatt (Thesaurus) millivolt Mill on the Floss, The* Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language