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The Best Internet Slang

naked eye

Sight unassisted by an instrument such as a microscope or telescope. For example, These insects are too small to be seen with the naked eye. This expression was first recorded in 1664.
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Examples from the Web for naked eye
Contemporary Examples
Historical Examples
  • Simba accepted the glasses, but first took a good look with the naked eye.

    The Leopard Woman Stewart Edward White
  • On their skin you cannot even distinguish the circulating veins with the naked eye.

    The Black Tulip Alexandre Dumas (Pere)
  • Mundane's name was in big letters, and you could just see mine with the naked eye.

    Changing Winds

    St. John G. Ervine
  • The flies in his cup, however, can not be detected 92 with the naked eye.

    The Book of Khalid Ameen Rihani
  • The naked eye might as well try to see the furthest star in the infinity of heaven.

    Phaedo Plato
  • Only 190 of the stars visible to the naked eye belong to this type.

    Lectures on Stellar Statistics Carl Vilhelm Ludvig Charlier
  • You can't see it with the naked eye, but it's there just the same.

    The Rover Boys on Treasure Isle Edward Stratemeyer (AKA Arthur M. Winfield)

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