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| X ray; X ray A penetrating electromagnetic radiation, usually generated by accelerating electrons to high velocity and suddenly stopping them by collision with a solid body, or by inner-shell transitions of atoms with atomic number greater than 10; their wavelength ranges from about 10(-5) angstrom to 10 angstroms, the average wavelength used in research being 1 angstrom | |||
| roentgen | |||
| röntgen | |||
| rontgen: 18 phrases in 7 subjects |
| Earth sciences | 3 |
| Environment | 1 |
| Health care | 1 |
| Information technology | 1 |
| Medical | 7 |
| Natural sciences | 1 |
| Technology | 4 |