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X-ray

From Wiktionary, the free dictionary
See also: x-ray, Xray, and xray

Translingual

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Image

Noun

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X-ray

  2. Alternative form of Xray of the ICAO/NATO radiotelephony alphabet

English

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Image
An early radiograph of Albert von Kölliker's left hand taken at a public lecture on 23 January 1896 by Wilhelm Röntgen, the discoverer of X-rays.

Alternative forms

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Etymology

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    From X +‎ ray, a calque of German X-Strahl, coined by Wilhelm Röntgen upon his discovery of the rays in 1895, where X signifies their unknown nature. The chess sense is metaphorical, referring to control passing through a seemingly solid barrier.

    Pronunciation

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    • (UK) IPA(key): /ˈɛks ɹeɪ/
    • (US) IPA(key): /ˈɛks ˌɹeɪ/
    • Audio (US):(file)

    Noun

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    X-ray (plural X-rays)

    2. A ray of short-wavelength electromagnetic radiation usually produced by bombarding a metal target in a vacuum. Used to create images of the internal structure of objects; this is possible because X-rays pass through most objects and can expose photographic film.
      Synonyms: Röntgen radiation, Roentgen-ray
      X-rays are light with a wavelength between 0.1 and 10 nm.
    4. A radiograph: an image made with X-rays.
      The doctor ordered some X-rays of my injured wrist.
      • 2012 June 2, Phil McNulty, “England 1-0 Belgium”, in BBC Sport‎[1], archived from the original on 25 January 2016:
        And this friendly was not without its injury worries, with defender Gary Cahill substituted early on after a nasty, needless push by Dries Mertens that caused him to collide with goalkeeper Joe Hart, an incident that left the Chelsea defender requiring a precautionary X-ray at Wembley.
    5. An X-ray machine, a machine for performing radiography.
    6. (chess) A tactical motif where a piece exerts influence or control over a square, piece, or line indirectly through another intervening piece.
    7. (video games) A cheat that allows a user to see other players, enemies and important objects through walls and other barriers.
      Synonym: wallhack
      Near-synonym: ESP

    Derived terms

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    Translations

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    Verb

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    X-ray (third-person singular simple present X-rays, present participle X-raying, simple past and past participle X-rayed)

    1. (transitive, informal) To take a radiograph of; to obtain an image of using X-ray radiation, especially for the purpose of medical diagnostic evaluation.
      Of course there was nothing wrong with my left wrist. They X-rayed the wrong arm!
      • 1925, Sidney Coe Howard, They Knew What They Wanted (Doubleday, Page and Company), Act II, page 116.
        Both legs broken in the morning. Tibia, fibula, femur, and ischium. X-rayed and set inside of an hour after the accident.
    2. (transitive, chess) Of a piece, to exert indirect influence, by either attacking, defending, or controlling an opponent's or friendly piece through an intervening piece along a rank, file, or diagonal.

    Translations

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    Adjective

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    X-ray (not comparable)

    1. Of or relating to X-rays.
      I had to put my bags through an X-ray scanner at the airport.

    Translations

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    Further reading

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