prickleback

[prik-uh l-bak]

noun

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

Origin of prickleback

First recorded in 1740–50; prickle + back¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018