[ proh-too-ber-uhns, -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

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for 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

Medicine definitions for protuberance


[ prō-tōōbər-əns ]


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