Definition of Protractor

Babylon English Dictionary
semi-circular instrument for plotting and measuring angles
Search Dictionary
Protractor Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(n.)
One who, or that which, protracts, or causes protraction.
  
(n.)
An instrument formerly used in extracting foreign or offensive matter from a wound.
  
(n.)
An adjustable pattern used by tailors.
  
(n.)
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. About
hEnglish - advanced version

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.

WordNet 2.0

Noun
1. drafting instrument used to draw or measure angles
(hypernym) drafting instrument
Protractor Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
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 (°).

See more at Wikipedia.org...
© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License
Protractor Definition from Society & Culture Dictionaries & Glossaries
Outdoor Glossary
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.