Definition of balsa noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈbɔːlsə//
; NAmE NAmE//ˈbɔːlsə//
(also balsa wood) [uncountable]
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the light wood of the tropical American balsa tree, used especially for making models Word Originearly 17th cent. (denoting a kind of South American raft or fishing boat): from Spanish, ‘raft’.
See the Oxford Advanced American Dictionary entry: balsa