: of or relating to X-rays
roentgen examinations
: the international unit of x-radiation or gamma radiation equal to the amount of radiation that produces in one cubic centimeter of dry air at 0°C and standard atmospheric pressure ionization of either sign equal to one electrostatic unit of charge
Examples of roentgen in a Sentence
Recent Examples on the Web
Rhett Allain, Wired, 25 June 2021
The units for exposure rates are commonly given in roentgen units per hour, or R/hr.
—Rhett Allain, Wired, 25 June 2021
My guess is that this is a type of unit conversion from some units other than roentgen.
—Rhett Allain, Wired, 25 June 2021
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Noun
The roentgen is basically a unit that relates to how much air would be ionized if electrons were freed from their atoms.
—Rhett Allain, Wired, 25 June 2021
The units for exposure rates are commonly given in roentgen units per hour, or R/hr.
—Rhett Allain, Wired, 25 June 2021
My guess is that this is a type of unit conversion from some units other than roentgen.
—Rhett Allain, Wired, 25 June 2021
Dictionary Entries Near roentgen
Cite this Entry
“Roentgen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roentgen. Accessed 5 Nov. 2024.
Copy CitationMedical Definition
roentgen
1 of 2 adjective
roent·gen
variants
also röntgen
: of, relating to, or using X-rays : x-ray
roentgen examinations
roentgen therapy
roentgen
2 of 2 noun
variants
also röntgen
: the international unit of x-radiation or gamma radiation equal to the amount of radiation that produces in one cubic centimeter of dry air at 0°C (32°F) and standard atmospheric pressure ionization of either sign equal to one electrostatic unit of charge
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