protractor
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tər, prə- noun
1.
a person or thing that protracts.
2.
(in surveying, mathematics, etc.) an instrument having a graduated arc for plotting or measuring angles.
3.
Anatomy. a muscle that causes a part to protrude.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To protractor
Collins
World English Dictionary
protractor (prəˈtræktə) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | an instrument for measuring or drawing angles on paper, usually a flat semicircular transparent plastic sheet graduated in degrees |
| 2. | a person or thing that protracts |
| 3. | a surgical instrument for removing a bullet from the body |
| 4. | anatomy a former term for extensor |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Protractor
is always a great word to know.
So is facial nerve. Does it mean:
| either one of the seventh pair of cranial nerves composed of motor fibers that control muscles of the face except those used in chewing |
| pertaining to any of certain large veins of the neck collecting blood from the superficial parts of the head or collecting blood from within the skull |
Etymonline
Word Origin & History
protractor
1610s, "one who lengthens (an action)," agent noun from L. protrahere see protract); sense of "instrument for drawing angles" first recorded 1650s.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
protractor pro·trac·tor (prō-trāk'tər, prə-)
n.
A muscle that extends a limb or other part.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
They estimate the correct position, then measure their guess with a protractor to see how close they were.
The first part is a hands-on activity using string, chalk, and protractor.
The protractor muscles of their beaks allow them to pry and to probe better than other birds.
The horizontal accelerometer is a protractor with a suspended weight.
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