"Rontgen" Natural Recordings by Native Speakers
The word "rontgen" refers to a unit of measurement for X-rays, specifically the amount of X-ray exposure, equal to the exposure required to produce one electrostatic charge of one electrostatic unit of electricity per unit of a cubic centimeter of air under standard conditions. The unit was named after the German physicist Wilhelm Conrad Röntgen, who discovered X-rays in 1895.