alastrim vs variola

alastrim and variola both are nouns.

Word	Noun	Adjective	Verb	Adverb
alastrim	Yes	No	No	No
variola	Yes	No	No	No

As nouns, variola is a hypernym of alastrim; that is, variola is a word with a broader meaning than alastrim:

alastrim: a mild form of smallpox caused by a less virulent form of the virus
variola: a highly contagious viral disease characterized by fever and weakness and skin eruption with pustules that form scabs that slough off leaving scars

Other hypernyms of alastrim include smallpox, variola major.

alastrim (noun)	variola (noun)
a mild form of smallpox caused by a less virulent form of the virus	a highly contagious viral disease characterized by fever and weakness and skin eruption with pustules that form scabs that slough off leaving scars