n., pl., stonefish, or -fish·es.
Any of several tropical scorpion fishes of the genus Synanceja, especially S. verrucosa, which resembles a small rock and ejects a deadly venom from spines on its dorsal fin.
[From its resemblance to an encrusted stone.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
