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Optical

Adjective

Definitions

1.AdjectiveOf or relating to sight; visual.
"Strabismus is an optical defect.; (Can we add an example for this sense?)"
2.AdjectiveDesigned to assist or enhance sight
"A microscope is an optical instrument."
3.AdjectiveOf or relating to optics.
"Refraction is an optical effect."
4.AdjectiveOf or relating to visible light.
"Optical telescopes don't work when it is cloudy."
5.AdjectiveIncorporating light-sensitive devices.
"An optical switch opens the door automatically."
6.NounAny special effect requiring laboratory work on the film.
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