- noun a small hand-held input device moved on a flat surface to control the position of a cursor on a computer screen
- A computer pointing device which when moved upon a surface also moves the cursor on the display screen, and which usually has two or more buttons used for selecting, performing functions, or the like. Some mice also have a scroll wheel, which further facilitates navigating through documents, Web pages, and so on. Most mice are either mechanical or optical, and some are cordless. A computer mouse looks more or less like its rodent counterpart, in that it has a compact body and a longish tail, while the moving and clicking of the former is analogous to the scurrying and nose-twitching of the latter, hence its name. Also called computer mouse.
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