PROTRACTOR
protractor
(noun) drafting instrument used to draw or measure angles
Source: WordNet® 3.1
Noun
protractor (plural protractors)
One who, or that which, protracts, or causes protraction.
A circular or semicircular tool for drawing or measuring angles.
(surgery) An instrument formerly used in extracting foreign or offensive matter from a wound.
(anatomy) A muscle that extends an organ or part; opposed to retractor.
An adjustable pattern used by tailors.
Source: Wiktionary
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.)
Definition: An instrument formerly used in extracting foreign or offensive
matter from a wound.
4. (Anat.)
Definition: 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 Edition