Roentgen: Meaning and Definition of


Pronunciation: (rent'gun, -jun, runt'- for 1 also Ger. rœnt'gun), [key]
— n.
  1. 1845–1923, German physicist: discoverer of x-rays 1895; Nobel prize 1901.
  2. (l.c.)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. Abbr.: r, R
  1. (sometimes l.c.) of or pertaining to Wilhelm Roentgen, the Roentgen unit, or esp. to x-rays.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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