globefish(n = noun.animal) blowfish, puffer, pufferfish - any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers;
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. [1913 Webster]