Bebeerine \Be*bee"rine\, or Bebirine \Be*bi"rine\
(b[-e]*b[=e]"r[i^]n or -r[=e]n), n. (Chem.)
An alkaloid got from the bark of the bebeeru, or green heart
of Guiana ({Nectandra Rodi[oe]i}). It is a tonic,
antiperiodic, and febrifuge, and is used in medicine as a
substitute for quinine. [Written also {bibirine}.]
[1913 Webster]