Definitions
1.NounOne who, or that which, protracts, or causes protraction.
2.NounA circular or semicircular tool for drawing or measuring angles."Use a protractor to measure the angle accurately.; The student forgot to bring her protractor to geometry class.; plastic protractor; measure with a protractor"
3.NounAn instrument formerly used in extracting foreign or offensive matter from a wound.
4.NounA muscle that extends an organ or part; opposed to retractor.
5.NounAn adjustable pattern used by tailors.