/ Dictionary / Index P posticous: Meaning and Definition of Find definitions for: pos•ti•cous Pronunciation: (po-stī'kus), [key] — adj. Bot. hinder; posterior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postiche posticum Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language