insolation vs thermic fever

insolation and thermic fever both are nouns.

Word	Noun	Adjective	Verb	Adverb
insolation	Yes	No	No	No
thermic fever	Yes	No	No	No

As nouns, insolation and thermic fever are synonyms defined as:

insolation and thermic fever: sudden prostration due to exposure to the sun or excessive heat

Other synonyms of insolation include siriasis, sunstroke.

insolation (noun)	thermic fever (noun)
therapeutic exposure to sunlight	sudden prostration due to exposure to the sun or excessive heat
incident solar radiation
sudden prostration due to exposure to the sun or excessive heat