balsa
noun /ˈbɔːlsə/
/ˈbɔːlsə/
(also balsa wood)
[uncountable]- the light wood of the tropical American balsa tree, used especially for making models
热带美洲轻木(尤用于制作模型) Collocations DictionaryBalsa is used before these nouns:- wood
词源early 17th cent. (denoting a kind of South American raft or fishing boat): from Spanish, ‘raft’.