grayling Meaning, Definition & Usage

Gray"ling noun
Etymology
From Gray, a.
Definitions
  1. (Zoöl.) A European fish (Thymallus vulgaris), allied to the trout, but having a very broad dorsal fin; -- called also umber. It inhabits cold mountain streams, and is valued as a game fish.
    And here and there a lusty trout, And here and there a grayling. Tennyson.
  2. (Zoöl.) An American fish of the genus Thymallus, having similar habits to the above; one species (T. Ontariensis), inhabits several streams in Michigan; another (T. montanus), is found in the Yellowstone region.

Webster 1913