/ Dictionary / Index P professional corporation: Meaning and Definition of Find definitions for: profes'sional corpora'tion Pronunciation: [key] a corporation formed by one or more licensed practitioners, esp. medical or legal, to operate their practices on a corporate plan. Abbr.: PC, P.C. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. professional professionalism Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language