#1
roentgen n. [
R] a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
. wn #2
roentgen n. [
Roentgen, Wilhelm Konrad Roentgen, Rontgen, Wilhelm Konrad Rontgen] German physicist who discovered x-rays and developed roentgenography (1845-1923)
. wn