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Meaning of optical trackpad | Babel Free

Noun CEFR B2

Definitions

An input device consisting of a small surface with an optical sensor, integrated for some smartphones and subnotebooks.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

optical trap optical tweezer optical tweezers optical wand opticality Optically

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