ecdysis vs moulting

ecdysis and moulting both are nouns.

Word	Noun	Adjective	Verb	Adverb
ecdysis	Yes	No	No	No
moulting	Yes	No	No	No

As nouns, ecdysis and moulting are synonyms defined as:

ecdysis and moulting: periodic shedding of the cuticle in arthropods or the outer skin in reptiles

Other synonyms of ecdysis include molt, molting, moult.

ecdysis (noun)	moulting (noun)
periodic shedding of the cuticle in arthropods or the outer skin in reptiles	periodic shedding of the cuticle in arthropods or the outer skin in reptiles