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milliradian

[mil-uh-rey-dee-uh n] /ˈmɪl əˌreɪ di ən/
noun
1.
one thousandth of a radian.
Origin
1950-1955
1950-55; milli- + radian
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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