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 ?
Editor's note: Marking the measuring surface of a protractor is like plugging up your M16's barrel.
Each launcher can be made using a protractor and a ruler.
Together, they listed fifty angles the students were to draw using a protractor, developing their proficiency with one of the geometer's basic tools.
The finished protractors were then used in the Unique Triangles activity.
Together with McVitie's and KP Snacks, we have millions of pounds worth of free maths stuff to give away - from computers and books to games and protractors.
99 school supplies, including crayons, colored pencils, pens, mechanical pencils, rulers, protractors, pencil cases, and more.
They could ponder the inches and angles and seconds of Tuesday night's 96-94 loss in San Antonio until they wore out their protractors.
With it, students can draw lines on their computers or handhelds as they would with pencils, protractors and compasses, but they can do it much more quickly and easily.
These include protractors, calculators, wall charts and computers and there's an extensive list for schools to choose from.
It's all added up to a great result with schools stocking up on computers, calculators, books, rulers, protractors, set squares, number dice and teacher/pupil teaching sets.
Every week we will print tokens which can be exchanged for all sorts of maths stuff ranging from protractors to PCs.
Broken chalk, protractors, a sawhorse, a ladder, stencils, and paint cans were scattered about as references to the tools of the artist.