optic

1 of 2

adjective

op·​tic ˈäp-tik 

: 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

Adjective

• ocular
• optical
• visual

Examples of optic in a Sentence

Adjective

the optic nerve

Recent Examples on the Web

Adjective

Inflammation of the optic nerve head (the part inside the eye), a form of optic neuritis. —Thomas G. Moukawsher, Newsweek, 12 Feb. 2025

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

Noun

Still, the optics are reminiscent of Daboll and Schoen conducting separate press conferences on a tense Black Monday after John Mara announced that both men were being retained for a fourth season. —Pat Leonard, New York Daily News, 3 Apr. 2025

The result is a system with no moveable parts that can continuously or periodically remove dust from optics, solar panels, space suits, visors, radiators, windows, and other surfaces without wear and tear. —David Szondy, New Atlas, 1 Apr. 2025

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

Phrases Containing optic

• electro-optic
• fiber-optic
• magneto-optic
• optic axis
• optic chiasma
• optic cup
• optic disc
• optic lobe
• optic nerve
• optic vesicle

Rhymes for optic

• coptic
• preoptic
• synoptic
• supraoptic

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 

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