(1):

(v. & n.) See Molt.

(2):

(n.) The act or process of changing the feathers, hair, skin, etc.; molting.

(3):

(v. t.) To shed or cast the hair, feathers, skin, horns, or the like, as an animal or a bird.

(4):

(v. t.) To cast, as the hair, skin, feathers, or the like; to shed.