variolation vs inoculating

variolation and inoculating both are nouns.

Word	Noun	Adjective	Verb	Adverb
variolation	Yes	No	No	No
inoculating	Yes	No	No	No

As nouns, inoculating is a hypernym of variolation; that is, inoculating is a word with a broader meaning than variolation:

variolation: the obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox
inoculating: the act of protecting against disease by introducing a vaccine into the body to induce immunity

Other hypernyms of variolation include vaccinating.

variolation (noun)	inoculating (noun)
the obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox	the act of protecting against disease by introducing a vaccine into the body to induce immunity