/ Dictionary / Index M middle-born: Meaning and Definition of Find definitions for: mid•dle-born Pronunciation: (mid'l-bôrn"), [key] — adj. neither first nor last in order of birth, esp. second in a family of three children. —n. a middle-born child. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Middle Atlantic States Middleborough Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language