Balsa

['bɔːlsə;'bɒlsə] or ['bɔlsə]

(noun.) forest tree of lowland Central America having a strong very light wood; used for making floats and rafts and in crafts.

(noun.) strong lightweight wood of the balsa tree used especially for floats.

录入:卢卡斯--From WordNet

(n.) A raft or float, used principally on the Pacific coast of South America.

整理:谢尔登