/ Dictionary / Index A afterbrain: Meaning and Definition of Find definitions for: af•ter•brain Pronunciation: (af'tur-brān", äf'-), [key] — n. the metencephalon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. afterbody afterburner Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language