optic

1 of 2

adjective

op·​tic ˈäp-tik How to pronounce optic (audio)
Synonyms of opticnext
: of or relating to vision or the eye

optic

2 of 2

noun

1
: eye
2
a
: any of the elements (such as lenses, mirrors, or light guides) of an optical instrument or system
usually used in plural
b
: an optical instrument

Synonyms of optic

Examples of optic in a Sentence

Adjective the optic nerve
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
In addition, the fluffy optic laser on the cleaning head highlights dust and particles to ensure the deepest clean. Paige Bennett, Better Homes & Gardens, 26 Dec. 2025 The vacuum has a fluffy optic cleaner head that not only cleans but also polishes hard floors. Yelena Moroz Alpert, Architectural Digest, 23 Dec. 2025
Noun
The construction of the West Wing, to house the president's Oval Office and staff, and the East Wing, to house the first lady's team and other auxiliary offices, was expertly planned to not interfere with the optics of the standalone Executive Residence. Kyler Alvord, PEOPLE, 9 Jan. 2026 Using optics for the interconnect layer would have consumed thousands of megawatt-hours. Christopher McFadden, Interesting Engineering, 9 Jan. 2026 See All Example Sentences for optic

Word History

Etymology

Adjective

Middle English, from Medieval Latin opticus, from Greek optikos, from opsesthai to be going to see; akin to Greek opsis appearance, ōps eye — more at eye

First Known Use

Adjective

15th century, in the meaning defined above

Noun

1601, in the meaning defined at sense 1

Time Traveler
The first known use of optic was in the 15th century

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Cite this Entry

“Optic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optic. Accessed 16 Jan. 2026.

Kids Definition

optic

adjective
op·​tic
ˈäp-tik
: of or relating to vision or the eye
Etymology

Adjective

Middle English optic "relating to the eye," from Latin opticus (same meaning), from Greek optikos (same meaning), from opsesthai "to be going to see" — related to autopsy

Medical Definition

optic

1 of 2 adjective
op·​tic ˈäp-tik How to pronounce optic (audio)
1
a
: of or relating to vision
optic phenomena
b
: dependent chiefly on vision for orientation
humans are basically optic animals
2
a
: of or relating to the eye : ocular
b
: affecting the eye or an optic structure

optic

2 of 2 noun
1
: any of the elements (as lenses, mirrors, or light guides) of an optical instrument or system
usually used in plural
2
: an optical instrument

More from Merriam-Webster on optic

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