/ Dictionary / Index M macrocosm: Meaning and Definition of Find definitions for: mac•ro•cosm Pronunciation: (mak'ru-koz"um), [key] — n. the great world or universe; the universe considered as a whole (opposed to microcosm). the total or entire complex structure of something: the macrocosm of war. a representation of a smaller unit or entity by a larger one, presumably of a similar structure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: macrocosm (Thesaurus) macroclimatology macrocyclic Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language