Source : Webster's Revised Unabridged Dictionary (1913)

Blenny \Blen"ny\, n.; pl. {Blennies}. [L. blennius, blendius,
   blendea, Gr. ?, fr. ? slime, mucus.] (Zo["o]l.)
   A marine fish of the genus {Blennius} or family
   {Blenniid[ae]}; -- so called from its coating of mucus. The
   species are numerous.