n. [ Written also bibiru. ] [ Native name. ] (Bot.) A tropical South American tree (Nectandra Rodiœi), the bark of which yields the alkaloid bebeerine, and the wood of which is known as green heart. [ Webster 1913 Suppl. ]

{ or } n. (Chem.) An alkaloid got from the bark of the bebeeru, or green heart of Guiana (Nectandra Rodiœi). It is a tonic, antiperiodic, and febrifuge, and is used in medicine as a substitute for quinine. [ Written also bibirine. ] [ 1913 Webster ]