mouse

To go stealthily or furtively.

Manipulate the mouse of a computer.

A swollen bruise caused by a blow to the eye.

A hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad.

“a mouse takes much more room than a trackball”

Any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails.

Person who is quiet or timid.