bal·sa /ˈbɔlsə/
一種輕質木材,筏
Bal·sa n. Naut. A raft or float, used principally on the Pacific coast of South America.
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balsa
n 1: strong lightweight wood of the balsa tree used especially
for floats [syn: balsa wood]
2: forest tree of lowland Central America having a strong very
light wood; used for making floats and rafts and in crafts
[syn: Ochroma lagopus]