whisker
US /ˈwɪs.kɚ/
UK /ˈwɪs.kɚ/

1.
a long, stiff hair growing from the snout or other part of the face of a mammal, such as a cat or mouse
:
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The cat twitched its whiskers.
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A mouse's whiskers help it navigate in the dark.
a long, stiff hair growing from the snout or other part of the face of a mammal, such as a cat or mouse