What does optical mean?

Definitions for optical
ˈɒp tɪ kəlop·ti·cal

This dictionary definitions page includes all the possible meanings, example usage and translations of the word optical.

Princeton's WordNet

  1. opticaladjective

    of or relating to or involving light or optics

    "optical supplies"

  2. ocular, optic, optical, visualadjective

    relating to or using sight

    "ocular inspection"; "an optical illusion"; "visual powers"; "visual navigation"

  3. ocular, optic, optical, opthalmicadjective

    of or relating to or resembling the eye

    "ocular muscles"; "an ocular organ"; "ocular diseases"; "the optic (or optical) axis of the eye"; "an ocular spot is a pigmented organ or part believed to be sensitive to light"


  1. opticaladjective

    Of, or relating to sight; visual

  2. opticaladjective

    Designed to assist or enhance sight

    A microscope is an optical instrument.

  3. opticaladjective

    Of, or relating to optics

    Refraction is an optical effect.

  4. opticaladjective

    Of, or relating to visible light

    Optical telescopes don't work when it is cloudy.

  5. opticaladjective

    Incorporating light-sensitive devices

    An optical switch opens the door automatically.

Samuel Johnson's Dictionary

  1. Opticalnoun

    Relating to the science of optics.

    Etymology: ὄϖτιϰος.

    It seems not agreeable to what anatomists and optical writers deliver, touching the relation of the two eyes to each other. Boyle.


  1. optical

    Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.Most optical phenomena can be accounted for by using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and interference that cannot be accounted for in geometric optics. Historically, the ray-based model of light was developed first, followed by the wave model of light. Progress in electromagnetic theory in the 19th century led to the discovery that light waves were in fact electromagnetic radiation. Some phenomena depend on light having both wave-like and particle-like properties. Explanation of these effects requires quantum mechanics. When considering light's particle-like properties, the light is modelled as a collection of particles called "photons". Quantum optics deals with the application of quantum mechanics to optical systems. Optical science is relevant to and studied in many related disciplines including astronomy, various engineering fields, photography, and medicine (particularly ophthalmology and optometry, in which it is called physiological optics). Practical applications of optics are found in a variety of technologies and everyday objects, including mirrors, lenses, telescopes, microscopes, lasers, and fibre optics.


  1. optical

    Optical refers to anything related to light or sight, particularly in relation to the science of optics, which studies the properties and behaviors of light. It can also pertain to devices or systems that use light or manipulate it, such as lenses, telescopes, cameras, or fiber optic cables.


  1. Optical

    Matt Quinn, better known as Optical, is a drum and bass producer and DJ from England. He is best known for his work with Ed Rush, fellow head of the Virus Recordings label, and as a pioneer of the techstep and neurofunk sound. His first single for Metalheadz, 'To Shape the Future'/'Raging Calm' and his collaborative material with Ed Rush, such as the Wormhole, album were archetypal developments in the style. The duo followed this debut album with The Creeps and The Original Doctor Shade, as well as countless singles and remixes. He also notably did most of the engineering and production work for Grooverider's album Mysteries of Funk. In addition, he has produced solo, and released in collaboration with many artists, including Trace, Dom & Roland, Fierce, and his brother Matrix. His music appears continuously in the WipEout series of videogames, notable for its association with electronica and electronic dance musics.

Anagrams for optical »

  1. capitol

  2. Capitol

  3. topical

  4. coalpit

How to pronounce optical?

How to say optical in sign language?


  1. Chaldean Numerology

    The numerical value of optical in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of optical in Pythagorean Numerology is: 4

Examples of optical in a Sentence

  1. Marc Postman:

    While the cosmic microwave background tells us about the first 450,000 years after the big bang, the cosmic optical background tells us something about the sum total of all the stars that have ever formed since then, it puts a constraint on the total number of galaxies that have been created, and where they might be in time.

  2. James Scott, Senior Fellow, Institute for Critical Infrastructure Technology:

    As we’ve already seen with exfiltrated voter registration databases and the endless methods of poisoning manufacturer updates, manipulating DRE and optical scan machines and bypassing air gap defense, the state election official’s illusion of security is being pummeled by the reality of cyberattack.

  3. Rickey Smith:

    The science is how do I fuse them together? How do I take multiple optical, infrared, and electromagnetic sensors and use them all at once in real-time, if you are out in the desert in an operational setting, infrared alone may be constrained heat so you need all types of sensors together and machines can help us sift through information.

  4. George Rieke:

    Excitement in astronomy in the last 70 years has been looking at different wavelengths, before that, all astronomy was done in optical( visible light) and looking at the universe in optical is like going to the symphony concert and only listening to one note. Now, we've got the whole symphony.

  5. Feng Wenhai:

    The city will also push forward the planning and construction of a maritime medical rescue center. Submarine optical cables will be laid and put into use this year, and Wi-Fi will cover all inhabited islands and reefs.

Popularity rank by frequency of use


Translations for optical

From our Multilingual Translation Dictionary

Get even more translations for optical »


Find a translation for the optical definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Use the citation below to add this definition to your bibliography:


"optical." Definitions.net. STANDS4 LLC, 2024. Web. 22 May 2024. <https://www.definitions.net/definition/optical>.

Discuss these optical definitions with the community:


    Are we missing a good definition for optical? Don't keep it to yourself...

    Image or illustration of


    Credit »

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!

    Browse Definitions.net


    Are you a words master?

    being essentially equal to something
    A articulate
    B equivalent
    C eminent
    D omnifarious

    Nearby & related entries:

    Alternative searches for optical: