Cucumber beetle, (Zool.) (a)A small, black flea-beetle (Crepidodera cucumeris), which destroys the leaves of cucumber, squash, and melon vines.
Cucumber tree. (a)A large ornamental or shade tree of the genus Magnolia (Magnolia acuminata), so called from a slight resemblance of its young fruit to a small cucumber.
(b)An East Indian plant (Averrhoa Bilimbi) which produces the fruit known as bilimbi.