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 

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 ?
If you must mark your IP on the protractors, do it only on the back of the prottracttor.
Sighting 30 percent of your 10-degree protractor scale is three degrees nose low.
Have a partner line up the protractor with the edge of the cardboard to record the incline at which the snowpack begins to slide.
With your protractor, measure the angles in the figure below.
However, for the home gardener or do-it-yourselfer, a close approximation can be created for nearly free with a plastic protractor and a compass.
Each team receives a plastic envelope containing reproductions of artwork that portrays Yosemite, a map of the valley floor, a clinometer to measure angles, a protractor, tape measure, and these instructions: Go by foot, shuttlebus, or van, and search for the precise location from which you think the artwork was made.
Serve to say it was no Paul Schmitt protractor engineering, but it got the job done.
Each launcher can be made using a protractor and a ruler.
99 we will send you the compass set and include an invaluable Linex combination set square and protractor, a Linex 30cm college ruler, a KUM pencil sharpener and Linex eraser.
s hip Planet Salon, Ginger Boyle, to break out her protractor and do some beauty math: "This playful and modern style looks great on girls with round or square faces, and who have medium to thick coarse hair.
The fully-featured system allows magnification from 5X to 100X, motorized X, Y, Z travel of 6~ x 12~ x 3~ with automatic edge-sensing, an electronic screen protractor, erect optical image, choice of PC-based or computerized geometric readouts, RS232 interface to a printer, and optical accuracy of 0.
A bench-top optical device that uses projection screen image coupled with a protractor device to obtain the reading, the contact angle meter allows more than one person to observe the droplet and read the measurements, according to the company.