X-ray

• IPA^(key): [ˈeksˈrei]

X-ray

1. The letter X in the ICAO spelling alphabet.

From X +‎ ray, a calque of German X-Strahl, coined by Wilhelm Conrad Röntgen upon his discovery of the rays in 1895, x signifying their unknown nature.

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

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X-ray (plural X-rays)

1. 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.

   X-rays are light with a wavelength between 0.1 and 10 nm.

2. A radiograph: a photograph 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:

     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.

3. An X-ray machine.
4. The letter X in the ICAO spelling alphabet.

• (radiation): Röntgen radiation / Rontgen radiation / Roentgen radiation
• (radiation): Röntgen rays / Rontgen rays / Roentgen rays
• (radiation): X-ray radiation

• T-ray
• gamma ray

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!

X-ray (not comparable)

1. Of or having to do with X-rays.

   I had to put my bags through an X-ray scanner at the airport.

   • 1974, Shel Silverstein, “Who”, Where the Sidewalk Ends, HarperCollins:

     Who will fly and have X-ray eyes— And be known as the man no bullet can kill?

• A picture of an X-ray photograph.
• A picture of an X-ray machine