noun.
A gray bulltrout; a variety of the trout, Salmo trutta cambricus.
noun.
Scaly or flaky matter on the surface of the skin; the scarf-skin or epidermis exfoliated in fine shreds or scales.
noun.
Any scaly or flaky matter on a surface.
noun.
Specifically
noun.
In botany, a loose bran-like scaly matter that is found on some leaves, as in the genus Elæagnus, etc.
noun.
A growth of polyps on oysters.
noun.
Scum; offscouring.
noun.
A fungous disease of potatoes, due to Rhizoctonia Solani, which gives the tubers a scurfy appearance and is accompanied by decay.