protractor


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protractor

1. an instrument for measuring or drawing angles on paper, usually a flat semicircular transparent plastic sheet graduated in degrees
2. a surgical instrument for removing a bullet from the body
3. Anatomy a former term for extensor

Protractor

 

an instrument used to construct and measure angles in sketches and on charts. A protractor consists of a straightedge and a semicircle that is graduated in degrees from 0° to 180°. The precision of a protractor increases as its size becomes larger: the larger the semicircle, the smaller the value of a division. Protractors for very precise construction and measurement of angles—for example, in navigation—are equipped with a transparent straightedge and a goniometric vernier that rotates about the midpoint of the diameter of the semicircle.

protractor

[′prō‚trak·tər]
(engineering)
A semicircular instrument used to construct and measure angles formed by intersecting lines of a plane; the midpoint of the diameter of the semicircle is marked and serves as the vertex of angles constructed or measured.

protractor

An instrument graduated in angular degrees for measuring or laying out angles.

protractor

protractorclick for a larger image
A navigational instrument for measuring angles (headings, tracks, and bearings) on a map or a chart.
References in periodicals archive ?
Use the protractor to find the 60[degrees] points around the circle.
Then, have students use another circular protractor,
In this compass set there is a compass, ruler, protractor, set square, pencil (with pencil refills), sharpener and eraser in a case.
Position angles were determined using the drift method, taking the position angle directly from the protractor scale (Argyle 2004).
Editor's note: Marking the measuring surface of a protractor is like plugging up your M16's barrel.
Protractor was beaten just over two lengths which was still a creditable run, particularly as he still looked to have a little bit of scope.
KEMPTON: 6.20 Anjomarba, 6.40 Al Mahmeyah, 7.20 King Ferdinand, 7.50 Money Money Money, 8.20 Making Eyes, 8.50 PROTRACTOR (NAP), 9.20 Fitz.
This project employed two experiments: Investigation I determined electrogoniometer accuracy compared to a digital protractor; Investigation II compared electrogoniometers to a criterion measure, motion analysis, in sagittal plane dance movements in 17 dancers.
Michael Hills also opened his account for the year when he partnered his father BarryEUROs newcomer Protractor to a head success in the 1m maiden.
He used the ruler and protractor to draw it, depending mainly on yellow color besides red, blue and brown colors, with different degrees.
The nifty protractor of the skies is called the attitude indicator; it accurately substitutes for that windshield bug smear your first CFI showed you back on ride one.
In math class students measure angles with a tool called a protractor which is marked off in a measure called degrees.