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2017 Word of the Year

circular measure

noun
1.
a measurement system for circles: 1 circle = 360 degrees (4 quadrants); 1 quadrant = 90 degrees; 1 degree = 60 minutes; 1 minute = 60 seconds.
Origin of circular measure
1870-1875
First recorded in 1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for circular measure

circular measure

noun
1.
the measurement of an angle in radians
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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12
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