单词 | balsa |
释义 | bal·sa ![]() n. 1. a. A tropical American tree (Ochroma pyramidale) having soft wood that is very light in weight and is used as a substitute for cork in insulation, floats, and crafts such as model airplanes. b. The wood of this tree. Also called corkwood. 2. A raft consisting of a frame fastened to buoyant cylinders of wood or metal. [Spanish, raft, balsa tree (used to make rafts), from Old Spanish, raft, probably of pre-Roman Iberian origin.] |
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