[proh-trakt, pruh-]
verb (used with object)
to draw out or lengthen, especially in time; extend the duration of; prolong.
Anatomy. to extend or protrude.
(in surveying, mathematics, etc.) to plot and draw (lines) with a scale and a protractor.

1540–50; < Latin prōtractus (past participle of prōtrahere to draw forth, prolong). See pro-1, tract1

protractedly, adverb
protractedness, noun
protractible, adjective
protractive, adjective
overprotract, verb (used with object)
unprotracted, adjective
unprotractive, adjective

1. continue. See lengthen.

1. curtail. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
protract (prəˈtrækt)
1.  to lengthen or extend (a speech, etc); prolong in time
2.  (of a muscle) to draw, thrust, or extend (a part, etc) forwards
3.  to plot or draw using a protractor and scale
[C16: from Latin prōtrahere to prolong, from pro-1 + trahere to drag]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1530s (implied in protraction), "prolongation, extension of time," from L.L. protractionem "a drawing out or lengthening," from pp. stem of protrahere, from pro- "forward" + trahere "to draw" (see tract (1)). Etymologically identical with portray, which was altered in French.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

protract pro·tract (prō-trākt', prə-)
v. pro·tract·ed, pro·tract·ing, pro·tracts
To extend or protrude a body 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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