/ Dictionary / Index P premature contraction: Meaning and Definition of Find definitions for: pre'mature contrac'tion Pronunciation: [key] — Med. Med. extrasystole. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. premature beat premature ejaculation 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