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  2. Light Definition & Meaning - Merriam-Webster

    www.merriam-webster.com/dictionary/light

    The meaning of LIGHT is something that makes vision possible. How to use light in a sentence. Synonym Discussion of Light.

  3. light, electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less than about 1 × 10 −11 metre to radio waves measured in metres.

  4. LIGHT Definition & Meaning - Dictionary.com

    www.dictionary.com/browse/light

    Light definition: something that makes things visible or affords illumination. See examples of LIGHT used in a sentence.

  5. LIGHT | English meaning - Cambridge Dictionary

    dictionary.cambridge.org/dictionary/english/light

    LIGHT definition: 1. the brightness that comes from the sun, fire, etc. and from electrical devices, and that allows…. Learn more.

  6. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz.

  7. Light Definition & Meaning | Britannica Dictionary

    www.britannica.com/dictionary/light

    LIGHT meaning: 1 : the form of energy that makes it possible to see things the brightness produced by the sun, by fire, by a lamp, etc. sometimes used figuratively; 2 : a source of light (such as an electric lamp)

  8. Light and its properties | Britannica

    www.britannica.com/summary/light

    light, That portion of the electromagnetic spectrum visible to the human eye. It ranges from the red end to the violet end of the spectrum, with wavelengths from 700 to 400 nanometres and frequencies from 4.3 × 10 14 to 7.5 × 10 14 Hz.

  9. LIGHT Definition & Usage Examples | Dictionary.com

    www.dictionary.com/browse/%C2%A0light

    Light definition: something that makes things visible or affords illumination. See examples of LIGHT used in a sentence.

  10. Meaning of light – Learner’s Dictionary - Cambridge Dictionary

    dictionary.cambridge.org/dictionary/learner-english/light

    LIGHT definition: 1. the brightness that shines from the sun, from fire, or from electrical equipment, allowing you…. Learn more.

  11. LIGHT definition and meaning | Collins English Dictionary

    www.collinsdictionary.com/dictionary/english/light

    Light is the brightness that lets you see things. Light comes from sources such as the sun, moon, lamps, and fire.