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 of optic

Adjective

• optical

Examples of optic in a Sentence

Adjective

the optic nerve

Recent Examples on the Web

Adjective

Hetzel was diagnosed with NF and an optic glioma that impacts her vision. —Wakisha Bailey, CBS News, 1 May 2026

Bring Alaïa’s soft sage skirt into sharp focus with the addition of monochromatic extras—a sculptural black top and optic white heels. —Christina Holevas, Vogue, 25 Apr. 2026

Noun

Of the photons of light that avoid clouds of dust and other deep-space obstructions to reach our planet, most don’t make it through Earth’s thick atmosphere, let alone through a telescope’s loss-prone optics. —K. R. Callaway, Scientific American, 27 May 2026

The laser systems Xcimer is developing use a mixture of gases rather than lenses and optics to generate and focus light onto a small fuel capsule that triggers a reaction. —Judith Kohler, Denver Post, 27 May 2026

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 disk
• 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