/ Dictionary / Index P proabortion: Meaning and Definition of Find definitions for: pro•a•bor•tion Pronunciation: (prō"u-bôr'shun), [key] — adj. pro-choice. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. proa proactive Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language