マウスホイールでしょう
mausuhoiirudeshō
1. Probably the mouse wheel.
Noun
#2176752
1. Probably the mouse wheel.
1. mouse (esp. a laboratory mouse)
2. (computer) mouse
1. wheel (esp. of a vehicle)
1. flywheel
1. it seems; I think
2. right?; don't you agree?
1. of mouse; mouse's
1. With the mouse; Using the mouse
1. of wheel; wheel's
1. It is a mouse.; I am a mouse.
1. It's probably a mouse.; A mouse, likely.