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English definition of “the naked eye”

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the naked eye

C2 If something can be seen with the naked eye, it can be seen without the help of an instrument: This organism is too small to be seen with the naked eye. The police found traces of blood on his jacket that were invisible to the naked eye.
Translations of “the naked eye”
in Chinese (Traditional) 肉眼…
in Chinese (Simplified) 肉眼…
(Definition of the naked eye from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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