GNU Collaborative International Dictionary of English
Found one definition
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Diodon , n. [Gr. δι- = δίσ- twice + ὀδούς, ὀδόντος, a tooth: cf. F. diodon.]
- (Zool.) 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. Called also porcupine fishes, and sea hedgehogs.1913 Webster
- (Zool.) A genus of whales.1913 Webster
- (Zool.) 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. Called also porcupine fishes, and sea hedgehogs.