Advanced English Word of the Day

Definitions

English > English
optical
1. adj. Of, or relating to sight; visual.
Strabismus is an optical defect.
2. adj. Designed to assist or enhance sight
A microscope is an optical instrument.
3. adj. Of, or relating to optics.
Refraction is an optical effect.
4. adj. Of, or relating to visible light.
Optical telescopes don't work when it is cloudy.
5. adj. Incorporating light-sensitive devices.
An optical switch opens the door automatically.

Example Sentences

The use of optical instruments with this product will increase eye hazard.  This looks longer than that, but it is an optical illusion.  Here's an optical illusion: you think you are looking at a cube, but in fact you are looking at the screen.

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