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- etimologia
Cosa (chi) è protractor - definizione
ANGLE MEASURING INSTRUMENT
Bevel protractor; Protracter; Protractors; Protracters
![A 400 gon protractor marked in [[gradian]]s.](https://commons.wikimedia.org/wiki/Special:FilePath/Grad protractor.png?width=200 "A 400 gon protractor marked in [[gradian]]s.")
![A "[[Cras navigation plotter]]" double-protractor, in foreground, named after his inventor [[Jean Cras]].](https://commons.wikimedia.org/wiki/Special:FilePath/Navigational rules types.JPG?width=200 "A \"[[Cras navigation plotter]]\" double-protractor, in foreground, named after his inventor [[Jean Cras]].")
![[[Geodreieck]]}}, a special type of [[protractor triangle]] (180°).](https://commons.wikimedia.org/wiki/Special:FilePath/Set square Geodreieck.svg?width=200 "[[Geodreieck]]}}, a special type of [[protractor triangle]] (180°).")
protractor
(protractors)
A protractor is a flat, semi-circular piece of plastic or metal which is used for measuring angles.
N-COUNT
Protractor
·noun An adjustable pattern used by tailors.
II. Protractor ·noun One who, or that which, protracts, or causes protraction.
III. Protractor ·noun A muscle which extends an organ or part;
- opposed to retractor.
IV. Protractor ·noun An instrument formerly used in extracting foreign or offensive matter from a wound.
V. Protractor ·noun 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.
protractor
¦ noun
1. an instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge.
2. chiefly Zoology a muscle serving to extend a part of the body. Compare with retractor.
Wikipedia
Protractor
A protractor is a measuring instrument, typically made of transparent plastic or glass, for measuring angles.
Some protractors are simple half-discs or full circles. More advanced protractors, such as the bevel protractor, have one or two swinging arms, which can be used to help measure the angle.
Esempi dal corpus di testo per protractor
1. "Students who rely on Google as a turbo–charged Library of Alexandria feel no more eager to use microfilm than they do to pick up a protractor and a needle–nosed compass," Mr.
2. "A schoolteacher was arrested today at Gatwick airport as he attempted to board a flight in possession of a ruler, a protractor, a set square, a slide rule and a calculator," reads the mail from the Party for Islamic Renewal, whose communications tend, in general, more to the cataclysmic than the comic.