[proh-too-ber-uhns, -tyoo-, pruh-]
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Origin of protuberance

First recorded in 1640–50; protuber(ant) + -ance
Related formspro·tu·ber·an·tial [proh-too-buh-ran-shuhl, -tyoo-] /proʊˌtu bəˈræn ʃəl, -ˌtyu-/, adjectivenon·pro·tu·ber·ance, noun

Synonyms for protuberance

See more synonyms for on Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for protuberance

Historical Examples of protuberance

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

protuberance in Medicine


  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.