Noun balsa has 2 senses
  1. balsa, balsa wood - strong lightweight wood of the balsa tree used especially for floats
    --1 is a kind of wood
    --1 is a substance of balsa, Ochroma lagopus
  2. balsa, Ochroma lagopus - forest tree of lowland Central America having a strong very light wood; used for making floats and rafts and in crafts
    --2 is a kind of angiospermous tree, flowering tree
    --2 is a member of Ochroma, genus Ochroma
    --2 has substances: balsa, balsa wood
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