protractor

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/prəˈtræktər/

US:USA pronunciation: IPAUSA pronunciation: IPA/proʊˈtræktɚ, prə-/

US:USA pronunciation: respellingUSA pronunciation: respelling(prō trak′tər, prə-)



WordReference Random House Learner's Dictionary of American English © 2025
pro•trac•tor /proʊˈtræktɚ, prə-/USA pronunciation   n. [countable]
  1. Mathematics, Surveyingan instrument used for measuring or drawing angles.
See -trac-.
WordReference Random House Unabridged Dictionary of American English © 2025
pro•trac•tor  (prō trak′tər, prə-),USA pronunciation n. 
  1. a person or thing that protracts.
  2. Mathematics, Surveying(in surveying, mathematics, etc.) an instrument having a graduated arc for plotting or measuring angles.
  3. Anatomya muscle that causes a part to protrude.
  • Medieval Latin; see protract, -tor
  • 1605–15

Collins Concise English Dictionary © HarperCollins Publishers::
protractor / prəˈtræktə/
  1. an instrument for measuring or drawing angles on paper, usually a flat semicircular transparent plastic sheet graduated in degrees
  2. a former term for extensor
'protractor' also found in these entries (note: many are not synonyms or translations):
course protractor - diagraph - plotter - protract

Forum discussions with the word(s) "protractor" in the title:


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