tri·fec·ta \(ˈ)trī¦fektə\noun (-s) Etymology:tri- + perfecta 1.: a variation of the perfecta in which a bettor must select the first 3 finishers of a race in the correct order of finish in order to win — called also triple — compare superfecta herein 2.: triple 1b < achieved a show-business trifecta: a platinum record, a hit TV series, and an Oscar nomination >