Pronunciation: (pôr'kyu-pīn"fish"), [key]
—pl. (esp. collectively) -fish, (esp. referring to two or more kinds or species) -fish•es.
any of several fishes of the family Diodontidae, esp. Diodon hystrix, of tropical seas, capable of inflating the body with water or air until it resembles a globe, with erection of the long spines covering the skin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.