optical

adjective

op·​ti·​cal ˈäp-ti-kəl How to pronounce optical (audio)
1
: of or relating to the science of optics
2
a
: of or relating to vision : visual
b
: visible sense 1
optical wavelength
c
: of, relating to, or being objects that emit light in the visible range of frequencies
an optical galaxy
d
: using the properties of light to aid vision
an optical instrument
3
a
: of, relating to, or utilizing light especially instead of other forms of energy
optical microscopy
b
: involving the use of light-sensitive devices to acquire information for a computer
optical character recognition
4
: of or relating to optical art
optically adverb

Examples of optical in a Sentence

The company manufactures microscopes, telescopes, and other optical instruments. an optical illusion that fools most people
Recent Examples on the Web Some contain optical brighteners to keep your clothes looking sharp. Clare Mulroy, USA TODAY, 12 May 2024 The main rear camera is still a 50-megapixel sensor with optical image stabilization, but the 13-megapixel ultrawide and 32-megapixel selfie camera are both updated. Allison Johnson, The Verge, 9 May 2024 See all Example Sentences for optical 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'optical.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1570, in the meaning defined at sense 1

Time Traveler
The first known use of optical was in 1570

Dictionary Entries Near optical

Cite this Entry

“Optical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optical. Accessed 25 May. 2024.

Kids Definition

optical

adjective
op·​ti·​cal ˈäp-ti-kəl How to pronounce optical (audio)
1
: relating to optics
2
: of or relating to vision
3
a
: of, relating to, or using light
an optical telescope
b
: involving the use of a device that senses light to acquire information for a computer
an optical scanner
optically adverb

Medical Definition

optical

adjective
op·​ti·​cal ˈäp-ti-kəl How to pronounce optical (audio)
1
: of or relating to the science of optics
2
a
: of or relating to vision : visual
b
: using the properties of light to aid vision
an optical instrument
3
: of, relating to, or utilizing light
optical microscopy

More from Merriam-Webster on optical

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