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  1. REFRACTION Definition & Meaning - Merriam-Webster

    The meaning of REFRACTION is deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium (such as air) into another (such as glass) …

  2. Refraction - Wikipedia

    In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. [1]

  3. Refraction | Definition, Examples, & Facts | Britannica

    Nov 17, 2025 · refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. For example, waves travel faster in deep water than …

  4. Refraction: What It Is and Why Light Bends - All About Vision

    Sep 15, 2025 · When light crosses into the new material and changes speed, it bends at a specific angle. This is refraction. The bigger the speed change, the bigger the bend. Reflection …

  5. REFRACTION | English meaning - Cambridge Dictionary

    The angle of refraction is the angle that a beam of light or other energy that is refracted by a surface makes with a line vertical to that surface.

  6. REFRACTION Definition & Meaning | Dictionary.com

    REFRACTION definition: the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different. See …

  7. refraction noun - Definition, pictures, pronunciation and usage …

    Definition of refraction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  8. REFRACTION definition and meaning | Collins English Dictionary

    the amount, in angular measure, by which the altitude of a celestial body is increased by the refraction of its light in the earth's atmosphere, being zero at the zenith and a maximum at the …

  9. Refraction - definition of refraction by The Free Dictionary

    The deflection of a wave, such as a light or sound wave, when it passes obliquely from one medium into another having a different index of refraction. 2. Astronomy The apparent change …

  10. RefractionThe Physics Hypertextbook

    Refraction is the change in direction of a wave caused by a change in speed as the wave passes from one medium to another. Snell's law describes this change.