/ Dictionary / Index M microwave: Meaning and Definition of Find definitions for: mi•cro•wave Pronunciation: (mī'krō-wāv"), [key] — n., v., -waved, -wav•ing. —n. an electromagnetic wave of extremely high frequency, 1 GH or more, and having wavelengths of from 1 mm to 30 cm. See —v.i. to use a microwave oven. —v.t. to cook, defrost, or otherwise prepare in a microwave oven. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: microwave (Thesaurus) microwatt microwave oven Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language