English Lexicon

Mouse

/maʊs/
nounCEFR A1 (Beginner)Top #2500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A small rodent typically characterized by a small body, a long bare or hairy tail, and large ears.

    "A little mouse scurried across the kitchen floor."
  2. 2

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

    "Click the left mouse button to open the file."

Linguistic Origin & Historical Etymology

Derived from Old English 'mūs', originating from Proto-Germanic '*mūs' and ultimately from the Proto-Indo-European root '*mūs-', meaning 'mouse' or 'muscle'. The plural form 'mice' preserves the historical Germanic umlaut. In modern computing, the sense was extended in the 1960s due to the resemblance of the device's cord to a tail.

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