siriasis vs thermic fever

siriasis and thermic fever both are nouns.

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

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

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

Other synonyms of siriasis include insolation, sunstroke.

siriasis (noun)	thermic fever (noun)
sudden prostration due to exposure to the sun or excessive heat	sudden prostration due to exposure to the sun or excessive heat