catchment area
plural of moonful
(hydrology) An area from which water drains into a particular lake, river, etc.; the catchment area of a large river includes its tributaries.
(zoology) Having a dentition of differing teeth.
A common chess opening, characterized by the moves 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6, in which black brings out both knights.
建設会社はダム工事を始める前に、流域の環境調査を行った。
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