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

Morgan Stanley in June raised its forecast for China's humanoid robot shipments to 50,000 units this year, nearly double its previous projection of 28,000.

— Jenny Lee, CNBC, 19 Aug. 2026
Like Texas, Wisconsin has passed bipartisan tax breaks to entice companies to do business there and were losing out on revenue when the profits blew away their projections.

— David Weigel, semafor.com, 19 Aug. 2026

Definition of projection

Noun

It was chosen because this animal’s femur lacks a crest or raised bony protrusion – known as a trochanter – where part of the tail musculature would attach.

— The Conversation, Fortune, 10 Aug. 2026
McCoy lives with severe spinal curvature disorder and a chest protrusion caused by a childhood surgery.

— Zachary Bynum, CBS News, 6 Aug. 2026

Definition of protrusion

Noun

An important question before Prime Minister Shah is whether a small landlocked nation with a youth bulge and rising expectations can deliver in the age of tech disruption and changing geopolitics.

— Vasuki Shastry, Forbes.com, 27 July 2026
With the bulge-bracket firms the clear winners, choosing a VC has become simpler.

— Robert Frank, CNBC, 14 July 2026

Definition of bulge

Noun

The announcement is the latest collaboration between Disney and Webtoon, which has already brought over 20 fan-favorite comics to Webtoon’s vertical-scroll format, available in a dedicated Disney section of the English-language Webtoon app.

— Todd Spangler, Variety, 15 Aug. 2026
Fernandes says the north side of the park is much better than the south side because his team is working section by section to bring change, noting that a safe park is critical to the well-being of the people who live in the area.

— Jeff Nguyen, CBS News, 14 Aug. 2026

Definition of section

Noun

But its centerpiece is the 65-year-old Climatron, a 70-foot-tall geodesic dome that houses 1,400 tropical plant species.

— The New York Times News Service Syndicate, San Diego Union-Tribune, 16 Aug. 2026
Twenty-seven Rare Handcrafts will be on show in Milan, from dome and desk clocks to pocket and wristwatches.

— Ming Liu, Robb Report, 15 Aug. 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

Prosecutors said Hernandez piloted the boat into a swell and had accelerated the throttle to try to pass through it until the swell swamped the bow of the boat, capsizing it immediately, a complaint alleged.

— Martin Goillandeau, CNN Money, 20 Aug. 2026
About three hours and 20 minutes into the ride, Hernandez piloted the vessel in a U-turn, which investigators believed brought the boat into a swell caused by a larger passing boat.

— Jeanine Santucci, USA Today, 20 Aug. 2026

Definition of swell

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“Protuberance.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protuberance. Accessed 22 Aug. 2026.

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Synonyms of protuberance

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