Wiktionary
millirem
n. One thousandth of a rem
Usage examples of "millirem".
For the present a radiation dose limit of 500 millirems per year has been somewhat arbitrarily set for the general public.
The maximum increase in radiation dose that would have been experienced by somebody immediately above the plant was measured by EPA, HEW, and NRC as eight millirems at most in the course of several days.