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protractor
[ proh-trak-ter, pruh- ]
noun
- a person or thing that protracts.
- (in surveying, mathematics, etc.) an instrument having a graduated arc for plotting or measuring angles.
- Anatomy. a muscle that causes a part to protrude.
protractor
/ prəˈtræktə /
noun
- an instrument for measuring or drawing angles on paper, usually a flat semicircular transparent plastic sheet graduated in degrees
- a person or thing that protracts
- a surgical instrument for removing a bullet from the body
- anatomy a former term for extensor
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Word History and Origins
Origin of protractor1
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Example Sentences
Then, if we have a protractor, we may apply it to the lines and see how many degrees of angle they contain.
From Project Gutenberg
The student should have and use a protractor, such as is furnished with this book, for the numerous exercises which are to follow.
From Project Gutenberg
Rule another line along the same edge of the board as before and with a protractor measure the angle between these lines.
From Project Gutenberg
At that point find, by means of a protractor, the angle a projection of the chord makes with the face of the beam.
From Project Gutenberg
No witness could tell more truth than the compass and protractor of Mr. Smith which were free from prejudice and partiality.
From Project Gutenberg
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