/ Dictionary / Index M medium-sized: Meaning and Definition of Find definitions for: me•di•um-sized Pronunciation: (mē'dē-um-sīzd"), [key] — adj. neither very large nor very small: a medium-sized house. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: medium-sized (Thesaurus) medium shot medium strip Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language