Definition of "grayling" in English

noun

1. Any freshwater fish of the genus Thymallus or specifically Thymallus thymallus, of the salmon family, having a large dorsal fin.

2. Other similar fish

3. Any of species Hipparchia semele, of the family Nymphalidae of butterflies.

4. Other butterflies of genus Hipparchia.

5. Some butterflies of the genus Oeneis.

6. A common wood-nymph, a nymphalid butterfly (Cercyonis pegala).