Akademik

roentgen ray

noun

electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target

• Syn: ↑X ray, ↑X-ray, ↑X-radiation

• Hypernyms: ↑electromagnetic radiation, ↑electromagnetic wave, ↑nonparticulate radiation, ↑ionizing radiation

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noun

Usage: often capitalized 1st R

Etymology: roentgen (I) + ray

: x ray

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(sometimes l.c.) x-ray.

[1895-1900]

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roentgen ray or Roentgen ray,

= X ray. (Cf. ↑X ray)

Useful english dictionary. 2012.