snow blower vs snow thrower

snow blower and snow thrower both are nouns.

Word	Noun	Adjective	Verb	Adverb
snow blower	Yes	No	No	No
snow thrower	Yes	No	No	No

As nouns, snow blower and snow thrower are synonyms defined as:

snow blower and snow thrower: a machine that removes snow by scooping it up and throwing it forcefully through a chute

snow blower (noun)	snow thrower (noun)
a machine that removes snow by scooping it up and throwing it forcefully through a chute	a machine that removes snow by scooping it up and throwing it forcefully through a chute