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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
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Adjective
Companies such as Jabil and optic connectors maker Amphenol are also strong tech performers this year, with their gains topping that of high-flying names such as Nvidia and Microsoft. Sean Conlon,pia Singh, CNBC, 3 Dec. 2025 Even the attachments are more impressive, like the Fluffy optic cleaner head, which now has a brighter green light to illuminate invisible dust on hardwood floors. PC Magazine, 1 Dec. 2025
Noun
World Stage, Narrow Spotlight The political optics were stark. Jesus Mesa, MSNBC Newsweek, 5 Dec. 2025 The modules contain a fiber laser array, beam control optics, power management equipment, and cooling systems. Kapil Kajal, Interesting Engineering, 4 Dec. 2025 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 8 Dec. 2025.

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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