prickleback

[ prik-uh l-bak ]
/ ˈprɪk əlˌbæk /

noun

any of several blennioid fishes of the family Stichaeidae, usually inhabiting cold waters, having spiny rays in the dorsal fin.

Origin of prickleback

First recorded in 1740–50; prickle + back1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019