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naked eye
Idioms and Phrases
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.Example Sentences
For something not visible to the naked eye, organic chemicals are a huge US export for the UK, totalling close to £3bn last year.
Even during a partial eclipse, it is never safe to look directly at the Sun with the naked eye as it can cause eye damage, including blindness.
Though he admits comparing reports from recent years has got easier due to mobile phone and digital cameras being more sensitive to capturing the aurora than the naked eye.
Most are expected to be visible to the naked eye, though not all seven.
Four of the planets - Mercury, Venus, Jupiter, and Mars - will be visible to the naked eye.
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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