beaver

noun

1.
the soft brown fur of the beaver
2.
a full beard
3.
a man's hat with a tall crown; usually covered with silk or with beaver fur
4.
a movable piece of armor on a medieval helmet used to protect the lower face
5.
a hat made with the fur of a beaver (or similar material)
6.
large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges
Derived from:
beaver