moulter vs beast

moulter and beast both are nouns.

Word	Noun	Adjective	Verb	Adverb
moulter	Yes	No	No	No
beast	Yes	No	No	No

As nouns, beast is a hypernym of moulter; that is, beast is a word with a broader meaning than moulter:

moulter: an animal (especially birds and arthropods and reptiles) that periodically shed their outer layer (feathers or cuticle or skin or hair)
beast: a living organism characterized by voluntary movement

Other hypernyms of moulter include animal, animate being, brute, creature, fauna.

moulter (noun)	beast (noun)
an animal (especially birds and arthropods and reptiles) that periodically shed their outer layer (feathers or cuticle or skin or hair)	a living organism characterized by voluntary movement
	a cruelly rapacious person