the GNU version of the Collaborative International Dictionary of English
n. The stickleback.
The Century Dictionary and Cyclopedia
n. The stickleback. Also prickle-fish and pricklyback.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
n. small elongate fishes of shallow northern seas; a long dorsal fin consists entirely of spines
Word Usage
"Octopus, capable of squeezing itself through extremely narrow cracks and openings, and the monkeyface prickleback, another eel-like fish that can survive out of water for longer than a day."