protractor


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protractor

 [pro-trak´ter]
1. a muscle that pulls a part forward; see also retractor.
2. a semicircular device for measuring and constructing angles.

pro·trac·tor

(prō-trak'tŏr, -tōr),
A muscle drawing a part forward, as antagonistic to a retractor (for example, the serratus anterior muscle is a protractor of the scapula; the lateral pterygoid muscle is a protractor of the mandible).
[L. pro-traho, pp. -tractus, to draw forth]

protractor

/pro·trac·tor/ (-trak´ter) an instrument for extracting foreign bodies from wounds.

protractor

(prō-trăk′tər, prə-)
n.
1. A semicircular instrument for measuring and constructing angles.
2. Anatomy A muscle that extends a limb or other part.

pro·trac·tor

(prō-trak'tǒr)
A muscle drawing a part forward, as antagonistic to a retractor.
[L. pro-traho, pp. -tractus, to draw forth]

protractor

muscle whose action causes forward movement of a part (contrast with retractor)

protractor 

1. Instrument used to measure or set out angles on paper.
2. A scale containing a circle graduated in degrees and a set of axes emerging from the centre of the circle used to set the axis of an astigmatic ophthalmic lens. It also includes various other scales for positioning the optical centre of lenses.

protractor

an instrument for extracting foreign bodies from wounds.
References in periodicals archive ?
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.
Star performance Protractor, a Galileo half-brother to the smart Danehill Destiny, scored on his debut and is one to keep an eye on Results and analysis start page 102
He used the ruler and protractor to draw it, depending mainly on yellow color besides red, blue and brown colors, with different degrees.
In much the same vein, by having students construct their own protractor, Ian Sheppard describes how this activity contributed greatly to their understanding of both the tool and the use to which the tool can be put.
In math class students measure angles with a tool called a protractor which is marked off in a measure called degrees.
As Radius solves the riddle using his medallion, the students are able to see a protractor in action.
She's doing geometry and using a protractor in math and she understands it all," says Shayer.
The new protractor eyepiece measures 360[degrees] to an accuracy of 5' using a rotary vernier and rotatable crosshair.
Old Trafford is where Warne unleashed his ball of the century to Mike Gatting with his first delivery in Ashes cricket 12 years ago, and Strauss is bracing himself for another trial by spin, admitting: "I'll have to get my protractor out to calculate how much it turns this time.