molt vs American spelling

molt and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
molt	Yes	No	Yes	No
American spelling	Yes	No	No	No

molt (noun)	American spelling (noun)
periodic shedding of the cuticle in arthropods or the outer skin in reptiles	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

molt (verb)	American spelling (verb)
cast off hair, skin, horn, or feathers