Definitions from Wiktionary (protractor)

▸ noun:  One who, or that which, protracts, or causes protraction.
▸ noun:  A circular or semicircular tool for drawing or measuring angles.
▸ noun:  (surgery) An instrument formerly used in extracting foreign or offensive matter from a wound.
▸ noun:  (anatomy) A muscle that extends an organ or part; opposed to retractor.
▸ noun:  An adjustable pattern used by tailors.
▸ Also see protractor

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