1 (of birds, mammals, reptiles, and arthropods) to shed (feathers, hair, skin, or cuticle)
n
2 the periodic process of moulting
See also →
ecdysis
(C14 mouten, from Old English mutian, as in bimutian to exchange for, from Latin mutare to change)
♦
moulter (U.S.)
♦
molter n