a small object connected to a computer by a wire, which you move around on a flat surface using your hand. You press the buttons to make the computer do certain tasks:
• You click on the icons with the mouse to go from one program to another.
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mouse UK US /maʊs/ noun [C] (plural mouses, or mice) IT
► a small piece of equipment that you move across a desk etc. in order to move the cursor on your computer screen: »
Hold down the control key and click the mouse.
Financial and business terms. 2012.