emesis vs inborn reflex

emesis and inborn reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
emesis	Yes	No	No	No
inborn reflex	Yes	No	No	No

As nouns, inborn reflex is a hypernym of emesis; that is, inborn reflex is a word with a broader meaning than emesis:

emesis: the reflex act of ejecting the contents of the stomach through the mouth
inborn reflex: an automatic instinctive unlearned reaction to a stimulus

emesis (noun)	inborn reflex (noun)
the reflex act of ejecting the contents of the stomach through the mouth	an automatic instinctive unlearned reaction to a stimulus