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

Meanwhile, eight games into the 2025 season, after the Hurricanes lost twice in a three-game span to fall to 6-2, projections gave Cristobal’s team just a 5% chance to make the postseason field.

— Jordan McPherson, Miami Herald, 16 July 2026
As production volumes escalate, the facility’s footprint is structured to expand dynamically, with projections indicating the creation of up to 300 technical and advanced manufacturing roles to sustain the regional defense industrial base.

— Aman Tripathi, Interesting Engineering, 15 July 2026

Definition of projection

Noun

Visitors may have noticed that Odorysseus’ spadix — the conic protrusion emerging upward from the plant — was much taller than Odora’s, which had caved in.

— Emily Tarinelli, Los Angeles Times, 14 July 2026
Surgeons noted that the man appeared in good health before the surgery, reporting no symptoms besides the painless protrusion.

— Beth Mole, ArsTechnica, 9 July 2026

Definition of protrusion

Noun

Alberto Briseno, a section chief for ICE's Homeland Security Investigations, wrote in a declaration that ICE personnel deleted the file after it was discovered and it was not used for law enforcement purposes.

— Jude Joffe-Block, NPR, 17 July 2026
There was disappointment among sections of the fanbase that Neave was not given more of an opportunity over the run-in, especially given how Woltemade and Wissa struggled.

— Chris Waugh, New York Times, 17 July 2026

Definition of section

Noun

The National Weather Service said cool air from the north will push the heat dome, responsible for a heat wave that started midweek, south and west in the coming days, relieving some of the most extreme temperatures in the Northeast.

— Dennis Romero, NBC news, 5 July 2026
The East Coast is expected to soon feel some relief from the extreme temperatures as the heat dome shrinks, bringing chances of severe thunderstorms.

— Karissa Waddick, USA Today, 5 July 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

In Harlem, these new arrivals also encountered swells of Black immigrants from French and British colonial powers, also arriving in search of economic opportunity as well as greater freedom of expression.

— Steven Johnson, Washington Post, 14 July 2026
The beach hazard statements have been in effect mainly due to the strong southerly swells brought by storms that have been ongoing in the south Pacific, sending waves of energy that slam into the West Coast.

— CBS News, CBS News, 12 July 2026

Definition of swell

Noun

While the overhang on BlackRock this year has been private credit exposure, this is a strong set of numbers.

— Jim Cramer, CNBC, 15 July 2026
Run a knife or offset spatula around edge of pan to loosen treats, lift from pan using parchment overhang as handles, and cut evenly into 24 bars.

— Erin Merhar, Southern Living, 13 July 2026

Definition of overhang

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“Protuberance.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protuberance. Accessed 19 Jul. 2026.

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Synonyms of protuberance

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