Source : Webster's Revised Unabridged Dictionary (1913)

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}.

Source : WordNet®

globefish
     n : 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 [syn: {puffer}, {blowfish}]
     [also: {globefishes} (pl)]