optics

American  

[op-tiks] / ˈɒp tɪks /

noun

1. (used with a singular verb) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision.

2. (used with a plural verb) the way a situation, action, event, etc., is perceived by the public or by a particular group of people.

   The optics on this issue are pretty good for the Democrats.

   Administrators worry about the bad optics of hiring new staff during a budget crisis.

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optics British  

/ ˈɒptɪks /

noun

1. (functioning as singular) the branch of science concerned with vision and the generation, nature, propagation, and behaviour of electromagnetic light

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optics Scientific  

/ ŏp′tĭks /

1. The scientific study of light and vision. The study of optics led to the development of more general theories of electromagnetic radiation and theories of color.

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optics Cultural  

1. The branch of physics dealing with light. (See electromagnetic waves, laser, lens, reflection, and refraction.)

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Etymology

Origin of optics

First recorded in 1570–80; from Medieval Latin optica, from Greek optiká “theory of the laws of light,” noun use of neuter plural of adjective optikós; see optic, -ics

Explanation

Scientists who study the physics of light are experts in optics. The field of optics includes light's physical attributes and the way our eyes detect it. If you learn about optics in a physics class, you'll spend some time learning about vision, which involves our eyes' ability to focus and reflect light — to see, in other words. Other aspects of optics include properties like reflection, refraction, and various ways light interacts with matter. Informally, optics is also used to mean "political spin," or the way the public perceives what politicians say and do, and how politicians tailor their actions to be viewed in specific ways.

Example Sentences

See Examples For:

optics

The newlyweds also explained that, though they value privacy, optics are important for at least one very important reason.

From Los Angeles Times ● Oct. 1, 2026

But for now, one of the summit's biggest victories for Beijing may have been the optics.

From BBC ● Sep. 25, 2026

The instrument combines optics, masks, self-flexing mirrors, and sensors that are designed to suppress the overwhelming glare of a star.

From Science Daily ● Sep. 21, 2026

Lumen’s stock garnered meme-like status as the artificial-intelligence boom got underway and investors anticipated opportunities for the company around connectivity and fiber optics as a growth sector.

From MarketWatch ● Sep. 19, 2026

Medieval optics was heavily dependent upon his contribution and he was unquestionably the best example of an experimental scientist before Gilbert.

From "The Invention of Science" by David Wootton

Related Words

• eyesight
• perception
• view