vaginal smear vs cytosmear

vaginal smear and cytosmear both are nouns.

Word	Noun	Adjective	Verb	Adverb
vaginal smear	Yes	No	No	No
cytosmear	Yes	No	No	No

As nouns, cytosmear is a hypernym of vaginal smear; that is, cytosmear is a word with a broader meaning than vaginal smear:

vaginal smear: smear taken from the vaginal mucosa for cytological analysis
cytosmear: a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope

Other hypernyms of vaginal smear include cytologic smear, smear.

vaginal smear (noun)	cytosmear (noun)
smear taken from the vaginal mucosa for cytological analysis	a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope