Definition of beaver
plural beavers
1
or plural beaver
a
:either of two large semiaquatic herbivorous rodents comprising a family (Castoridae including Castor canadensis of North America and C. fiber of Eurasia), having webbed hind feet and a broad flat scaly tail, and constructing dams and partially submerged lodges
b
:the fur or pelt of the beaver
2 a
:a hat made of beaver fur or a fabric imitation
b
:silk hat
3
:a heavy fabric of felted wool or of cotton napped on both sides
4
usually vulgar
:the pudenda of a woman
