nullipara vs woman

nullipara and woman both are nouns.

Word	Noun	Adjective	Verb	Adverb
nullipara	Yes	No	No	No
woman	Yes	No	No	No

As nouns, woman is a hypernym of nullipara; that is, woman is a word with a broader meaning than nullipara:

Other hypernyms of nullipara include adult female.

nullipara (noun)	woman (noun)
(obstetrics) a woman who has never give birth to a child	women as a class
	an adult female person (as opposed to a man)
	a female person who plays a significant role (wife or mistress or girlfriend) in the life of a particular man