optical.
Of or relating to sight; visual.
Meaning & usage
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.
Where this word comes from
From optic + -al.
Any special effect requiring laboratory work on the film.
Where this word comes from
From optic + -al.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.