Moults is a word commonly used to refer to the shedding of feathers or fur by an animal, or the shedding of skin by a reptile. There are many synonyms for this word, depending on the context in which it is used. Some of these synonyms include shedding, exfoliation, sloughing, ecdysis, and molting. Each of these words refers to a similar process by which an animal or reptile sheds old skin or feathers and grows a new layer. Although these words have different origins and meanings, they can be used interchangeably to describe the process of moulting.