/rent"geuhn, -jeuhn, runt"-/ ; for 1 also Ger. /rdduent"geuhn/ , n.
1. Wilhelm Konrad /wil"helm kon"rad/ ; Ger. /vil"helm kawn"rddaht/ , 1845-1923, German physicist: discoverer of x-rays 1895; Nobel prize 1901.
2. ( l.c. ) 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. Abbr.: r, R
adj.
3. ( sometimes l.c. ) of or pertaining to Wilhelm Roentgen, the Roentgen unit, or esp. to x-rays.
Also, Röntgen .