protractor
/pɹəˈtɹæktə(ɹ)/ noun
Forms protractors
- noun One who, or that which, protracts, or causes protraction.
- noun A circular or semicircular tool for drawing or measuring angles. “plastic protractor”
- 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.
Synonyms
Webster’s 1913
- noun One who, or that which, protracts, or causes protraction.
- noun 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.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “protractor”, CC BY-SA 4.0. Details