pseudovariola vs smallpox

pseudovariola and smallpox both are nouns.

Word	Noun	Adjective	Verb	Adverb
pseudovariola	Yes	No	No	No
smallpox	Yes	No	No	No

As nouns, smallpox is a hypernym of pseudovariola; that is, smallpox is a word with a broader meaning than pseudovariola:

pseudovariola: a mild form of smallpox caused by a less virulent form of the virus
smallpox: 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 pseudovariola include variola, variola major.

pseudovariola (noun)	smallpox (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