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Showing words for ROENTGEN using the English dictionary
8 Letter Words for Roentgen
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3 Letter Words for Roentgen
Definitions for Roentgen
[1] Wil·helm Kon·rad [wil -helm kon -rad; German vil -helm kawn -r aht] /ˈwɪl hɛlm ˈkɒn ræd; German ˈvɪl hɛlm ˈkɔn rɑt/ , 1845–1923, German physicist: discoverer of x-rays 1895; Nobel prize 1901.
[2] (lowercase ) Physics . a unit of exposure dose that measures x-rays or gamma rays in terms of the ions or electrons produced in dry air at 0° C and one atmosphere, equal to the amount of radiation producing one electrostatic unit of positive or negative charge per cubic centimeter of air. Abbreviation : r, R
[3] (sometimes lowercase ) of or relating to Wilhelm Roentgen, the Roentgen unit, or especially to x-rays.
[4] a unit of dose of electromagnetic radiation equal to the dose that will produce in air a charge of 0.258 × 10 –3 coulomb on all ions of one sign, when all the electrons of both signs liberated in a volume of air of mass one kilogram are stopped completely Symbol: R , r
[5] Wilhelm Konrad (ˈvɪlhɛlm ˈkɔnraːt). 1845–1923, German physicist, who in 1895 discovered X-rays: Nobel prize for physics 1901
Word origin for Roentgen
C20: named after W. K. Roentgen