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(), n.[Tetra- + Gr. , , tooth.] (Zol.) Any one of numerous species of plectognath fishes belonging to Tetrodon and allied genera. Each jaw is furnished with two large, thick, beaklike, bony teeth. [Written also tetradon.] The skin is usually spinous, and the belly is capable of being greatly distended by air or water. It includes the swellfish, puffer (a), and similar species. スポンサード リンク
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