optical
adjectiveUK /ˈɒptɪkəl/
US /ˈɑːptɪkəl/
Something optical has to do with light or the eyes.
She got new optical glasses to help her see better.
SYNONYMS
OTHER MEANINGS
2. Related to the science of light and how it moves.
The scientist studied optical effects like rainbows and reflections.
3. Describing a device that uses lenses or light to work.
A microscope is an optical instrument used to see tiny things.
4. Related to how something looks to the eye.
The artist used an optical trick to make the picture seem to move.