/ Dictionary / Index M macrocyte: Meaning and Definition of Find definitions for: mac•ro•cyte Pronunciation: (mak'ru-sīt"), [key] — n. Pathol. an abnormally large red blood cell. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: macrocyte (Thesaurus) macrocyst macrodome Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language