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milliroentgen

[mil-uh-rent-guh n, -juh n, -ruhnt-]

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noun

a unit of radiation equal to one thousandth of a roentgen. Abbreviation: mR, mr

Origin of milliroentgen

1950–55; milli- + roentgen

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for milliroentgen

Historical Examples of milliroentgen

A one-hour visit to the inner fenced area will result in a whole body exposure of one-half to one milliroentgen.
Trinity [Atomic test] Site
White Sands Missile Range Public Affairs Office