gravida vs primigravida

gravida and primigravida both are nouns.

Word	Noun	Adjective	Verb	Adverb
gravida	Yes	No	No	No
primigravida	Yes	No	No	No

As nouns, primigravida is a hyponym of gravida; that is, primigravida is a word with a more specific, narrower meaning than gravida:

Other hyponyms of gravida include gravida I, gravida II, secundigravida, gravida III, tertigravida.

gravida (noun)	primigravida (noun)
a pregnant woman	(obstetrics) a woman who is pregnant for the first time
the number of the pregnancy that a woman is in