Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “optical”

optical

adjective     /ˈɒptɪkəl/
relating to light and the ability to see: optical equipment/goods/devices They manufacture a variety of lenses, mirrors, prisms, and other optical components.
IT relating to the ability of a piece of electronic equipment to recognize printed or written letters or numbers: an optical scanner/reader
optically adverb
(Definition of optical adjective from the Cambridge Business English Dictionary © Cambridge University Press)
Focus on the pronunciation of optical

Definitions of “optical” in other dictionaries

Word of the Day

generous

willing to give money, help, kindness, etc., especially more than is usual or expected

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More