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2017 Word of the Year

central angle

noun, Geometry.
1.
an angle formed at the center of a circle by two radii.
Origin of central angle
1900-1905
First recorded in 1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for central angle

central angle

noun
1.
an angle whose vertex is at the centre of a circle
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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central angle in Science
central angle
  (sěn'trəl)   
An angle formed by two rays from the center of a circle, with the center forming the vertex.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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