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roentgen n. 人名;德国物理学家 人名;德国物理学家 roentgen n 1: a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air [synonym: {roentgen}, {R}] 2: German physicist who discovered x-rays and developed roentgenography (1845-1923) [synonym: {Roentgen}, {Wilhelm Konrad Roentgen}, {Rontgen}, {Wilhelm Konrad Rontgen}] Rontgen \R["o]nt"gen\, Roentgen \Roent"gen\, a.
Of or pertaining to the German physicist Wilhelm Konrad R["o]ntgen, or the rays discovered by him; as, R["o]ntgen apparatus. [Webster 1913 Suppl.]
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