semi-circular instrument for plotting and measuring angles
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Protractor Definition from Language, Idioms & Slang Dictionaries & Glossaries
(n.)
One who, or that which, protracts, or causes protraction.
One who, or that which, protracts, or causes protraction.
(n.)
An instrument formerly used in extracting foreign or offensive matter from a wound.
An instrument formerly used in extracting foreign or offensive matter from a wound.
(n.)
An adjustable pattern used by tailors.
An adjustable pattern used by tailors.
(n.)
A muscle which extends an organ or part; -- opposed to retractor.
A muscle which extends an organ or part; -- opposed to retractor.
(n.)
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.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. AboutA 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.
protractor
you can click anywhere, but just don't click here.
protractor
\pro*tract"or\ (?), n.
1. one who, or that which, protracts, or causes protraction.
2. 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.
3. (surg.) an instrument formerly used in extracting foreign or offensive matter from a wound.
4. (anat.) a muscle which extends an organ or part; -- opposed to retractor.
5. an adjustable pattern used by tailors.
Noun
1. drafting instrument used to draw or measure angles
(hypernym) drafting instrument
Protractor Definition from Encyclopedia Dictionaries & Glossaries
In geometry, a protractor is a square, circular or semicircular tool, typically in transparent perspex, for measuring angles. The units of measurement utilized are usually degrees (°).
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Protractor Definition from Society & Culture Dictionaries & Glossaries
sometimes built into a compass, this instrument allows you to determine and measure angles in degrees and is most useful when projecting magnetic lines across your map.
