Milliroentgen definition
Milliroentgen or “mR” means one thousandth of a roentgen (R), the special unit of exposure which one roentgen is equals 2.58E-4 coulombs per kilogram of air.
Milliroentgen. (mR) means a unit of measurement for radiation
Milliroentgen or “mR” means the unit of radiation exposure and is equal to 2.58E- 7 coulombs per kilogram of air.