||Al`ga*ro"ba (?), n. [Sp.
algarroba, fr. Ar. al-kharr?bah. Cf. Carob.]
(Bot.) (a) The Carob, a leguminous tree of the
Mediterranean region; also, its edible beans or pods, called St. John's
bread. (b) The Honey mesquite (Prosopis
juliflora), a small tree found from California to Buenos Ayres; also,
its sweet, pulpy pods. A valuable gum, resembling gum arabic, is collected
from the tree in Texas and Mexico.