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: P- P. P/ P< Pa Pb Pc Pd Pe Pf Ph Pi Pj Pk Pl Pm Pn Po Pp Pr Ps Pt Pu Pv Pw Px Py
protracter | protractible | protractile | protraction | protractive | protractor | protreptical | protriptyline | protropin | protrudable | protrude

protractor

 : 
Noun
 : 
pro=trac=tor

CIDE DICTIONARY

protractorn. 
  •  One who, or that which, protracts, or causes protraction.  [1913 Webster]
  •  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.  [1913 Webster]
  •  An instrument formerly used in extracting foreign or offensive matter from a wound.  [1913 Webster]
  •  A muscle which extends an organ or part; -- opposed to retractor.  [1913 Webster]
  •  An adjustable pattern used by tailors.  Knight.  [1913 Webster]

OXFORD DICTIONARY

protractor, n.
1 an instrument for measuring angles, usu. in the form of a graduated semicircle.
2 a muscle serving to extend a limb etc.

THESAURUS

protractor

astrolabe, azimuth circle, azimuth compass, bevel, bevel protractor, bevel square, clinometer, goniometer, graphometer, pantometer, quadrant, radiogoniometer, sextant, theodolite, transit, transit circle, transit instrument, transit theodolite

For further exploring for "protractor" in Webster Dictionary Online


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