What does "protractor" mean?
Protractor: 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.
Additional senses
- 2.(Surg.) An instrument formerly used in extracting foreign or offensive matter from a wound.
- 3.(Anat.) A muscle which extends an organ or part; -- opposed to retractor.
- 4.An adjustable pattern used by tailors. Knight.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00