/ Dictionary / Index M microdetector: Meaning and Definition of Find definitions for: mi•cro•de•tec•tor Pronunciation: (mī'krō-di-tek"tur), [key] — n. an instrument measuring small quantities or changes. an extremely sensitive galvanometer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microdensitometer microdissection Related Content Daily Word Quiz: inane Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language