any of several fishes of the family Blenniidae and related families, esp. of the genus Blennius, having a long, tapering body and small pelvic fins inserted before the pectoral fins.
Origin: 1745–55; < L blennius a kind of fish < Gk blénnos slime, mucus; so called from its slimy coating
blen·ny (blěn'ē) n.
pl.blen·nies Any of several widely distributed, chiefly marine fishes that are primarily of the families Blenniidae and Clinidae and have small, elongated, often scaleless bodies.
[Latin blennius, a kind of sea fish, from Greek blennos, slime, blenny; see mel-1 in Indo-European roots.]