Grayling /(?)/

Gray·ling

Grayling

n.
  1. 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. (Zool.)
    And here and there a lusty trout, And here and there a grayling.
  2. 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. (Zool.)