sweating sickness vs miliary fever

sweating sickness and miliary fever both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweating sickness	Yes	No	No	No
miliary fever	Yes	No	No	No

As nouns, sweating sickness and miliary fever are synonyms defined as:

sweating sickness and miliary fever: epidemic in the 15th and 16th centuries and characterized by profuse sweating and high mortality

sweating sickness (noun)	miliary fever (noun)
epidemic in the 15th and 16th centuries and characterized by profuse sweating and high mortality	epidemic in the 15th and 16th centuries and characterized by profuse sweating and high mortality
a disease of cattle (especially calves)