mil·​li·​rem ˈmi-lə-ˌrem How to pronounce millirem (audio)
: one thousandth of a rem

Examples of millirem in a Sentence

Recent Examples on the Web Of the most recent tests, the highest dose of internal radiation was calculated at 10 to 20 millirem during the next 50 years from particles within their bodies. Annette Cary, The Seattle Times, 24 Mar. 2018 After the June contamination spread, the highest dose calculated for a worker was 10 millirem over 50 years. Annette Cary, The Seattle Times, 24 Mar. 2018 In comparison, during a flight aboard a commercial airliner from New York City to Los Angeles, you’ll be exposed to 2 millirems. Jennifer Nalewicki, Smithsonian, 6 Oct. 2017 Nine workers were tested and found to have inhaled doses of less than 100 millirem of americium-241, according to a DOE enforcement letter of August 2016. Patrick Malone and Peter Cary, idahostatesman, 10 Aug. 2017 The scanner peers inside the human body by sweeping a person with a .3 millirem X-ray. Erik Baard, WIRED, 13 Nov. 2001

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'millirem.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of millirem was in 1947

Dictionary Entries Near millirem

Cite this Entry

“Millirem.” Dictionary, Merriam-Webster, Accessed 17 Apr. 2024.

Medical Definition


mil·​li·​rem ˈmil-ə-ˌrem How to pronounce millirem (audio)
: one thousandth of a rem
abbreviation mrem
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