tetrodon

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CIDE DICTIONARY

tetrodon, n. [Tetra- + Gr. , , tooth.].

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. [1913 Webster]

" 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." [1913 Webster]