naked eye is a noun meaning "the eye unaided by any optical instrument that alters the power of vision or alters the apparent size or distance of objects". It carries one recorded sense.
the eye unaided by any optical instrument that alters the power of vision or alters the apparent size or distance of objects
“it is not safe to look directly at the sun with the naked eye”
Definitions, synonyms and semantic relations for naked eye come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.