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PROTRACTOR Definition & Meaning | Dictionary.com

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protractor

[ proh-trak-ter, pruh- ]

noun

  1. a person or thing that protracts.
  2. (in surveying, mathematics, etc.) an instrument having a graduated arc for plotting or measuring angles.
  3. Anatomy. a muscle that causes a part to protrude.


protractor

/ prəˈtræktə /

noun

  1. an instrument for measuring or drawing angles on paper, usually a flat semicircular transparent plastic sheet graduated in degrees
  2. a person or thing that protracts
  3. a surgical instrument for removing a bullet from the body
  4. anatomy a former term for extensor
“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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Word History and Origins

Origin of protractor1

From Medieval Latin, dating back to 1605–15; protract, -tor

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