The Collaborative International Dictionary
porcupine fish
Globefish \Globe"fish`\, n. (Zo["o]l.) A plectognath fish of the genera Diodon, Tetrodon, and allied genera. The globefishes can suck in water or air and distend the body to a more or less globular form. Called also porcupine fish, and sea hedgehog. See Diodon.
WordNet
porcupine fish
n. spines become erect when the body is inflated; worldwide in warm waters [syn: porcupinefish, Diodon hystrix]
Usage examples of "porcupine fish".
With that head it is like one of those porcupine fish that swallow air and swell up after they are caught.