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单词 obtriangular
释义 obtriangular, a. Nat. Hist.|ɒbtraɪˈæŋgjʊlə(r)|
[ob- 2.]
Triangular in form, with the apex downwards, or at the base of the organ or part.
1826Kirby & Sp. Entomol. III. xxxii. 324 The fourth joint is very large and obtriangular.
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