milliroentgen

M3I1L1L1I1R1O1E1N1T1G2E1N1

noun

A unit of exposure to ionizing radiation, one thousandth of a roentgen.

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Meanings

nounmilliroentgen (plural milliroentgens or milliroentgen)

plural milliroentgens · alternative milliröntgen · alternative mR

  1. A unit of exposure to ionizing radiation, one thousandth of a roentgen.

    Mineral residue tested on the bridge and on the banks of the river found levels of radioactivity as high as 10 milliroentgen per hour, about 33 times what Congo considers a tolerable limit.

    2007 November 8, “Radioactive Dumping Is Reported in Congo”, in New York Times

Origin

From milli- + roentgen.

Full word history & related roots →
Cite this entry
APA

milliroentgen. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/milliroentgen

MLA

“milliroentgen.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/milliroentgen. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “milliroentgen,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/milliroentgen.

Source: milliroentgen on Wiktionary, CC BY-SA 4.0.