slough vs moult

slough and moult both are nouns.

Word	Noun	Adjective	Verb	Adverb
slough	Yes	No	Yes	No
moult	Yes	No	Yes	No

As verbs, slough and moult are synonyms defined as:

Other synonyms of slough include exuviate, molt, shed.

slough (noun)	moult (noun)
any outer covering that can be shed or cast off (such as the cast-off skin of a snake)	periodic shedding of the cuticle in arthropods or the outer skin in reptiles
necrotic tissue; a mortified or gangrenous part or mass
a stagnant swamp (especially as part of a bayou)
a hollow filled with mud

slough (verb)	moult (verb)
cast off hair, skin, horn, or feathers	cast off hair, skin, horn, or feathers