/ Dictionary / Index M midafternoon: Meaning and Definition of Find definitions for: mid•af•ter•noon Pronunciation: (mid'af"tur-nn', -äf"-), [key] — n. the part of the afternoon centering approximately on three o'clock; the period approximately halfway between noon and sunset. —adj. occurring in or pertaining to midafternoon: a midafternoon nap. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: midafternoon (Thesaurus) mid midair Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language