Roentgen
— Navneord
– Engelsk
~ German physicist who discovered x-rays and developed roentgenography (1845-1923)
roentgen ray
— Navneord
– Engelsk
~ electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
roentgen
— Navneord
– Engelsk
~ a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
roentgenium
— Navneord
– Engelsk
~ a radioactive transuranic element
roentgenogram
— Navneord
– Engelsk
~ a radiogram made by exposing photographic film to X rays; used in medical diagnosis
roentgenography
— Navneord
– Engelsk
~ radiography that uses X-rays to produce a roentgenogram
roentgenoscope
— Navneord
– Engelsk
~ an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation
roeoptager
— Navneord
– Dansk
~ landbrugsmaskine der bruges til at høste roer med