Protractor
Pronunciation : Pro*tract"or
Part of Speech : n.
Definition : 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.)
Defn: An instrument formerly used in extracting foreign or offensive matter from a wound.
4. (Anat.)
Defn: A muscle which extends an organ or part; -- opposed to retractor.
5. An adjustable pattern used by tailors. Knight.
Source : Webster's Unabridged Dictionary, 1913