Di"o*don (?), n. [Gr. = twice + , , a tooth: cf. F. diodon.]

1. 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. fishes, and sea hedgehogs.

2. Zool.

A genus of whales.


© Webster 1913.

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