optic

1 of 2

adjective

op·​tic ˈäp-tik How to pronounce optic (audio)
: 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

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
The first symptom to appear is diabetes mellitus, usually diagnosed around age six, and optic atrophy (progressive vision loss) around age 11. Carisa Brewster, Verywell Health, 14 Jan. 2025 The vacuum has a fluffy optic cleaner head that not only cleans but also polishes hard floors. Terri Williams, Architectural Digest, 2 Dec. 2024
Noun
The technology works by firing a beam of light the width of a pencil from one traffic light-sized terminal to another, using a system of sensors, optics, and mirrors to fix it on a 1.5 inch receiver. Michael Teo Van Runkle, Ars Technica, 17 Mar. 2025 That might technically exempt the athletic department from the hiring freeze, but there’s still the matter of optics. Mark Zeigler, San Diego Union-Tribune, 12 Mar. 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 1 Apr. 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

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