siriasis vs sunstroke

siriasis and sunstroke both are nouns.

Word	Noun	Adjective	Verb	Adverb
siriasis	Yes	No	No	No
sunstroke	Yes	No	No	No

As nouns, siriasis and sunstroke are synonyms defined as:

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

Other synonyms of siriasis include insolation, thermic fever.

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