/ Dictionary / Index P postrorse: Meaning and Definition of Find definitions for: pos•trorse Pronunciation: (pos'trôrs, po-strôrs'), [key] — adj. directed backward. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. post road postscript Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language