·noun The fur of the beaver.
II. Beaver ·noun An amphibious rodent, of the genus Castor.
III. Beaver ·noun A hat, formerly made of the fur of the beaver, but now usually of silk.
IV. Beaver ·noun Beaver cloth, a heavy felted woolen cloth, used chiefly for making overcoats.
V. Beaver ·noun That piece of armor which protected the lower part of the face, whether forming a part of the helmet or fixed to the breastplate. It was so constructed (with joints or otherwise) that the wearer could raise or lower it to eat and drink.