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- (countable) A tree or plant that has been miniaturized by planting it in a small pot, restricting its roots, and by careful pruning.
- (uncountable) The art of planting and growing trees or plants in such a manner.
a miniaturized tree or plant
the art of growing miniaturized trees or plants
- Rōmaji reading of ぼんさい
bonsai n (indeclinable)