X-ray
An early radiograph of w:Albert von KöllikerAlbert von Kölliker's left hand taken at a public lecture on 23 January 1896 by w:Wilhelm RöntgenWilhelm Röntgen, the discoverer of X-rays.
Meanings
Noun
- 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.
- A radiograph: a photograph made with X-rays.
- An X-ray machine.
- The letter X in the ICAO spelling alphabet.
Verb
- To take a radiograph of; to obtain an image of using X-ray radiation, especially for the purpose of medical diagnostic evaluation.
Adjective
- Of or having to do with X-rays.
Related
Similar words
- Röntgen radiation / Rontgen radiation / Roentgen radiation
- Röntgen rays / Rontgen rays / Roentgen rays
- X-ray radiation
Origin
- From X + ray, a , coined by Wilhelm Röntgen upon his discovery of the rays in 1895, X signifying their unknown nature.
Modern English dictionary
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