Pap smear vs cervical smear

Pap smear and cervical smear both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pap smear	Yes	No	No	No
cervical smear	Yes	No	No	No

As nouns, Pap smear and cervical smear are synonyms defined as:

Pap smear and cervical smear: a sample of secretions and superficial cells of the uterine cervix and uterus; examined with a microscope to detect any abnormal cells

Other synonyms of Pap smear include Papanicolaou smear.

Pap smear (noun)	cervical smear (noun)
a sample of secretions and superficial cells of the uterine cervix and uterus; examined with a microscope to detect any abnormal cells	a sample of secretions and superficial cells of the uterine cervix and uterus; examined with a microscope to detect any abnormal cells