protuberance

American  

[proh-too-ber-uhns, -tyoo-, pruh-] / proʊˈtu bər əns, -ˈtju-, prə- /

noun

1. the condition, state, or quality of being protuberant.

2. a protuberant part or thing; projection or bulge.

   Synonyms:

   swelling, protrusion

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Other Word Forms

• nonprotuberance
  noun
• protuberantial
  adjective

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Etymology

Origin of protuberance

First recorded in 1640–50; protuber(ant) + -ance

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Explanation

A protuberance is something that sticks out, like a swelling or a lump or a bunion on your foot. A protuberance doesn’t have to be hideous; it could be your nose on your face or a knot on a tree. The late Latin word prōtūberāre meant "to swell," coming from the prefix pro, which means "forward," and the root word tūber, meaning "swelling." And "root word" is appropriate here, since a tuber is a thick, fleshy part of a root, like a potato. And that should help you remember how to spell the word protuberance. Don't you love it when a word's meaning and its spelling work together?

Example Sentences

See Examples For:

protuberance

But for thousands of years, all there was to show they had ever existed was a slight protuberance on the landscape.

From The Wall Street Journal ● Oct. 14, 2026

For example, why were American women encouraged to torture themselves with cage-like corsets, don yards of cumbersome cloth and carry around a heavy protuberance called a bustle?

From Washington Post ● Sep. 10, 2022

After friends and family suggested the protuberance might be a contender for the Guinness World Records, the couple submitted an application for “the world’s heaviest potato,” sat back and waited.

From New York Times ● Mar. 17, 2022

Consisting of four different species in Spain, horseshoe bats may be distinguished from other bats by the horseshoe shape of their leaf-like nose protuberance.

From Scientific American ● Aug. 31, 2017

She thought she could see the white protuberance of bone.

From "Atonement" by Ian McEwan

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