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[proh-too-ber-uh ns, -tyoo-, pruh-] /proʊˈtu bər əns, -ˈtyu-, prə-/
the condition, state, or quality of being protuberant.
a protuberant part or thing; projection or bulge.
Origin of protuberance
1640-50; protuber(ant) + -ance
Related forms
[proh-too-buh-ran-shuh l, -tyoo-] /proʊˌtu bəˈræn ʃəl, -ˌtyu-/ (Show IPA),
nonprotuberance, noun
2. protrusion, swelling. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for protuberance
  • 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.
  • There is a glandular protuberance on the base of the tail in the adult males.
  • The name is also used for any protuberance or appendage resembling such a structure glaucous thinly covered with a whitish bloom.
Word Origin and History for protuberance

1640s, from Late Latin protuberantem (nominative protuberans), present participle of protuberare "to swell, bulge, grow forth," from Latin pro- "forward" (see pro-) + tuber "lump, swelling" (see tuber).

Online Etymology Dictionary, © 2010 Douglas Harper
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protuberance in Medicine

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

  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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