PROTUBERANCE Synonyms: 61 Similar and Opposite Words

Q: How is the word 'protuberance' different from other nouns like it?

Some common synonyms of protuberance are bulge , projection , and protrusion . While all these words mean "an extension beyond the normal line or surface," protuberance implies a growing or swelling out in rounded form. // a skin disease marked by warty protuberances

Q: When is 'bulge' a more appropriate choice than 'protuberance'?

The synonyms bulge and protuberance are sometimes interchangeable, but bulge suggests an expansion caused by internal pressure. // bulges in the tile floor

Q: When could 'projection' be used to replace 'protuberance'?

In some situations, the words projection and protuberance are roughly equivalent. However, projection implies a jutting out especially at a sharp angle. // those projections along the wall are safety hazards

Q: In what contexts can 'protrusion' take the place of 'protuberance'?

The words protrusion and protuberance are synonyms, but do differ in nuance. Specifically, protrusion suggests a thrusting out so that the extension seems a deformity. // the bizarre protrusions of a coral reef

protuberance

noun

prō-ˈtü-b(ə-)rən(t)s

Definition of protuberance

as in projection

a part that sticks out from the general mass of something the tree trunk had several mossy protuberances where branches had once grown

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How is the word protuberance different from other nouns like it?

Some common synonyms of protuberance are bulge, projection, and protrusion. While all these words mean "an extension beyond the normal line or surface," protuberance implies a growing or swelling out in rounded form.

a skin disease marked by warty protuberances

When is bulge a more appropriate choice than protuberance?

The synonyms bulge and protuberance are sometimes interchangeable, but bulge suggests an expansion caused by internal pressure.

bulges in the tile floor

When could projection be used to replace protuberance?

In some situations, the words projection and protuberance are roughly equivalent. However, projection implies a jutting out especially at a sharp angle.

those projections along the wall are safety hazards

In what contexts can protrusion take the place of protuberance?

The words protrusion and protuberance are synonyms, but do differ in nuance. Specifically, protrusion suggests a thrusting out so that the extension seems a deformity.

the bizarre protrusions of a coral reef

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of protuberance When cells produce proteins, the amino acids spontaneously fold into tangled and twisted structures, with pockets and protuberances, and sometimes long, trailing tails. — Jeremy Kahn, Fortune, 28 Nov. 2025 In the far distance lies the Pacific Ocean, and beyond that, featureless protuberances labeled Japan, Russia and China. — Matthew Carey, Deadline, 1 Sep. 2025 Above the central display is a ventilative protuberance sporting a pair of menacing ambient lights. — Brett Berk, Robb Report, 19 Aug. 2025 Violet-blue protuberances are surrounded by what look like thorns but are actually soft, if jagged, flower parts. — Joshua Siskin, Orange County Register, 14 Mar. 2025 See All Example Sentences for protuberance

Recent Examples of Synonyms for protuberance

Noun

So while Epson has made giant high-fps 4K projection more accessible, the limiting factor may ultimately end up being your living room rather than the hardware.

— New Atlas, New Atlas, 28 Sep. 2026
Democrats are hoping to win back a majority in the House and Senate — though Republicans are still favored in most projections to retain the upper chamber — and have tried to distinguish themselves as the more pro-regulation party.

— Justin Papp, CNBC, 28 Sep. 2026

Definition of projection

Noun

Despite their pointy protrusions, the sculptures are not spiky enough to leave a mark; and despite their flirtations with touchy subject matter, none of the works—not even the 9/11 ones—are vulgar enough to get Wolfson in hot water.

— Alex Greenberger, ARTnews.com, 23 Sep. 2026
Testing it myself, the case nearly eliminates the protrusion.

— Kimberly Gedeon, PC Magazine, 19 Aug. 2026

Definition of protrusion

Noun

The Parthenon’s columns famously have a slight inward tilt toward the roof and bulge at the center, which some people theorize balances out the curved stylobate.

— Emma Gometz, Scientific American, 22 Sep. 2026
It’s designed with a flexible, supportive jelly strip and wide sides provide a smooth, bulge-free coverage that looks polished under T-shirts.

— Jacqueline Tempera, PEOPLE, 17 Sep. 2026

Definition of bulge

Noun

Walking through it, which the work impels one to do, shows that the six sections of Shift afford a sequence of passages down into and across the terrain.

— Jeffrey Weiss, Artforum, 1 Oct. 2026
Scientists can now examine sections of DNA that were once inaccessible and detect forms of genetic variation that older methods may have missed.

— Euan Ashley, STAT, 1 Oct. 2026

Definition of section

Noun

Under the new Endangered Species Act interpretations, it would not be considered a federal offense to clear private palmetto flatwoods or cypress domes.

— Timothy Randhir, The Conversation, 1 Oct. 2026
Across the outfield concourse of the stadium (formerly known as Coolray Field), more than 300 emerald ceramic domes will be set to temperatures ranging from 200 to 700 degrees.

— Sam Flemming, AJC.com, 30 Sep. 2026

Definition of dome

Noun

Today, convexity, which can be more expensive, is used earlier and some experts recommend a convexity-first approach after ostomy surgery.

— Diego Schaps, STAT, 1 Apr. 2026
The tower flaunts its partnership with the Dime Savings Bank, sending the 1908 landmark’s geometrical exuberance rocketing upward in a play of convexities and concavities, glass and trim, darkness and gleam.

— Justin Davidson, Curbed, 28 Jan. 2026

Definition of convexity

Noun

Already, waves are approaching a seaside rail line and oceanfront homes were damaged during swells last month tied to Hurricane Marie.

— ABC News, ABC News, 3 Oct. 2026
Meanwhile, a swell from Hurricane Rachel is expected to bring elevated surf of 5 to 6 feet to area beaches on Tuesday through Thursday, according to the weather service forecast.

— Alex Wigglesworth, Los Angeles Times, 2 Oct. 2026

Definition of swell

Noun

Former employees claim that officials at the Kennedy Center for the Performing Arts in Washington, DC, opted not to undertake repairs of leaks in the building’s roof overhangs months ago.

— Brian Boucher, ARTnews.com, 28 Sep. 2026
Stepping out from its legal and spending overhangs, Meta’s new enterprise venture is especially exciting considering that the company doesn’t currently have a true enterprise arm.

— Zev Fima, CNBC, 28 Sep. 2026

Definition of overhang

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protrusive

protuberance

protuberances

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“Protuberance.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protuberance. Accessed 5 Oct. 2026.

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Synonyms of protuberance

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