スクロールホイールでしょう
sukurōruhoiirudeshō
1. Scroll wheel, likely.; Probably a scroll wheel.
Noun
#2465502
1. Scroll wheel, likely.; Probably a scroll wheel.
1. wheel (esp. of a vehicle)
1. flywheel
1. it seems; I think
2. right?; don't you agree?
1. of wheel; wheel's
1. With a wheel; By wheel
1. Was a wheel.
1. Of flywheel; Relating to flywheel
1. Wheel; It is a wheel.
1. If/when wheels; Regarding wheels