conceptus vs beast

conceptus and beast both are nouns.

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

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

conceptus: an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
beast: a living organism characterized by voluntary movement

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

conceptus (noun)	beast (noun)
an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life	a living organism characterized by voluntary movement
	a cruelly rapacious person