/ Dictionary / Index M microrelief: Meaning and Definition of Find definitions for: mi•cro•re•lief Pronunciation: (mī"krō-ri-lēf'), [key] — n. surface features of the earth of small dimensions, commonly less than 50 ft. (15 m). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microreader microreproduction Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language