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protractor

Pronunciation: /prəˈtraktə/
Translate protractor | into German | into Italian
Definition of protractor

noun

  • 1an instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge.
  • 2 (also protractor muscle) chiefly Zoology a muscle serving to extend a part of the body. Compare with retractor.

protractor in other Oxford dictionaries

Definition of protractor in the US English dictionary

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