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Diodon

1. (Science: zoology) a genus of spinose, plectognath fishes, having the teeth of each jaw united into a single beaklike plate. They are able to inflate the body by taking in air or water, and, hence, are called globefishes, swellfishes, etc. Fishes, and sea hedgehogs.

2. (Science: zoology) a genus of whales.

Origin: gr. = twice _, a tooth: cf. F. Diodon.