/ Dictionary / Index M microtome: Meaning and Definition of Find definitions for: mi•cro•tome Pronunciation: (mī'kru-tōm"), [key] — n. an instrument for cutting very thin sections, as of organic tissue, for microscopic examination. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: microtome (Thesaurus) microthin microtomy Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language