n.1. a. Either of two large semiaquatic rodents, Castor canadensis of North America or C. fiber of Eurasia, having thick brown fur, webbed hind feet, a broad flat tail, and sharp incisors used for gnawing bark and felling trees, with which they construct dams and underwater lodges.
b. The fur of a beaver.
c. A top hat originally made of the underfur of a beaver.
2. A napped wool fabric, similar to felt, used for outer garments.
3. a. Vulgar Slang The female genitals.
b. Offensive Slang A woman or girl.
adj.1. Of or relating to a beaver or beavers: beaver fur; a beaver hat.
2. Constructed by beavers: beaver dams.