Definition from Wiktionary, the free dictionary
- Of, or relating to sight; visual
- Strabismus is an optical defect.
- Designed to assist or enhance sight
- A microscope is an optical instrument.
- Of, or relating to optics
- Refraction is an optical effect.
- Of, or relating to visible light
- Optical telescopes don't work when it is cloudy.
- Incorporating light-sensitive devices
- An optical switch opens the door automatically.
relating to sight — see optic
relating to optics — see optic
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