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• X-ray astronomy (noun)
  1. astronomy an observational branch of astronomy, which deals with the study of X-ray emission
• X-ray crystallography (noun)
  1. a technique in which the patterns formed by the diffraction of X-rays on passing through a crystalline substance yield information on the lattice structure of the crystal, and the molecular structure of the substance
• X-ray diffraction (noun)
  1. the scattering of X rays by the atoms of a crystal; the diffraction pattern shows structure of the crystal
• X-ray film (noun)
  1. photographic film used to make X-ray pictures
• X-ray machine (noun)
  1. an apparatus that provides a source of X rays
• X-ray photograph (noun)
  1. a radiogram made by exposing photographic film to X rays; used in medical diagnosis
• X-ray photography (noun)
  1. radiography that uses X-rays to produce a roentgenogram
• X-ray picture (noun)
  1. a radiogram made by exposing photographic film to X rays; used in medical diagnosis
• X-ray therapy (noun)
  1. the therapeutic use of X rays
• X-ray tube (noun)
  1. a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays
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