/ Dictionary / Index M microammeter: Meaning and Definition of Find definitions for: mi•cro•am•me•ter Pronunciation: (mī"krō-am'mē-tur), [key] — n. an instrument for measuring extremely small electric currents, calibrated in microamperes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. micro microampere Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language