- molt [mōlt]vi.[ME mouten (with unhistoric -l- after FAULT, in which the letter was orig. silent) < OE (be)mutian, to exchange < L mutare, to change: see MUTATE]to cast off or shed the exoskeleton, hair, outer skin, horns, or feathers at certain intervals, prior to replacement of the castoff parts by a new growth: said of reptiles, birds, insects, etc.vt.to replace by moltingn.1. the act or process of molting2. the parts so shedmoltern.
English World dictionary. V. Neufeldt. 2014.