protractor Meaning, Definition & Usage
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noun drafting instrument used to draw or measure angles
WordNet
Pro*tract"or noun
Definitions
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One who, or that which, protracts, or causes protraction. -
A mathematical instrument for laying down and measuring angles on paper, used in drawing or in plotting. It is of various forms, semicircular, rectangular, or circular. -
(Surg.) An instrument formerly used in extracting foreign or offensive matter from a wound. -
(Anat.) A muscle which extends an organ or part; -- opposed to retractor. -
An adjustable pattern used by tailors. Knight.
