mousepad vs mouse mat

mousepad and mouse mat both are nouns.

Word	Noun	Adjective	Verb	Adverb
mousepad	Yes	No	No	No
mouse mat	Yes	No	No	No

As nouns, mousepad and mouse mat are synonyms defined as:

mousepad and mouse mat: a small portable pad that provides traction for the ball of a computer mouse

mousepad (noun)	mouse mat (noun)
a small portable pad that provides traction for the ball of a computer mouse	a small portable pad that provides traction for the ball of a computer mouse