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Swellfish vs. Pufferfish

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Swellfishnoun

(zoology) Any plectognath fish that dilates itself, such as the pufferfish.

Pufferfishnoun

Any species of fish of the family Tetraodontidae that have the ability to inflate themselves to a globe several times their normal size by swallowing water or air when threatened; puffer, blowfish, swellfish, balloonfish, globefish.

Swellfishnoun

Any plectognath fish that dilates itself, as the bur fish, puffer, or diodon.

Pufferfishnoun

A delicacy popular in Japan served raw as sushi that may, if improperly prepared, contain deadly levels of neurotoxins; (Japanese) fugu.

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