noun, plural li·on·fish·es, (especially collectively) li·on·fish.
a brightly striped scorpionfish of the genus Pterois, especially P. volitans, of the Indo-Pacific region, having long, flamboyant, venomous spiny fins.
an Atlantic scorpionfish, Scorpaena grandicornis.
Origin of lionfish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -fish or -fishes
any of various scorpion fishes of the tropical Pacific genus Pterois, having a striped body and elongated spiny fins
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012