protraction definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- a. The act of protracting.b. The state of being protracted.
- Linguistics The irregular lengthening of a normally short syllable.
protraction - Medical Definition
Extension of teeth or other maxillary or mandibular structures into a position anterior to the normal position.
Variant of protract
- to draw out; lengthen in duration; prolong
- to draw to scale; using a protractor and scale
- Zool. to thrust out; extend
Origin: ; from Classical Latin protractus, past participle of protrahere ; from pro-, forward plush trahere, to draw