protuberance

[proh-too-ber-uhns, -tyoo-, pruh-]
noun
1.
the condition, state, or quality of being protuberant.
2.
a protuberant part or thing; projection or bulge.

Origin:
1640–50; protuber(ant) + -ance

protuberantial [proh-too-buh-ran-shuhl, -tyoo-] , adjective
nonprotuberance, noun


2. protrusion, swelling.
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World English Dictionary
protuberant (prəˈtjuːbərənt)
 
adj
swelling out from the surrounding surface; bulging
 
[C17: from Late Latin prōtūberāre to swell, from pro-1 + tūber swelling]
 
pro'tuberance
 
n
 
pro'tuberancy
 
n
 
pro'tuberantly
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

protuberance
1646, from L.L. protuberantem (nom. protuberans), prp. of protuberare "to swell, bulge, grow forth," from L. pro- "forward" + tuber "lump, swelling" (see tuber).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

protuberance pro·tu·ber·ance (prō-tōō'bər-əns, -tyōō'-, prə-)
n.

  1. Something, such as a bulge, knob, or swelling, that protrudes.

  2. The condition of being protuberant.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The shortest sympathetic string is raised by a protuberance on the bridge so that it can be struck in isolation.
He trained his ever-present field magnifier on the bug's back, which sprouted a cadmium-yellow horn-shaped protuberance.
But it may be that those with single copies experience a more limited, but still enhanced, protuberance growth.
At the point of intersection of the four divisions of the cruciate eminence is the internal occipital protuberance.
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