naked eye

• Refere-se à visão humana normal, sem o auxílio de instrumentos ópticos como telescópios, microscópios ou binóculos.

Refers to normal human vision without the aid of any optical instruments such as telescopes, microscopes, or binoculars.

1. Unaided visionB1formal

   The ability to see something without the help of a telescope, microscope, or other optical instruments.

   Olho nu

   • The planet Venus is visible to the naked eye in the evening sky.
   • Some bacteria are too small to be seen with the naked eye.
   • The details on the coin were barely discernible to the naked eye.