Definition of protuberancenext

Synonym Chooser

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 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 By flying drones over a remote stretch of the Canadian Arctic, scientists were able to capture unique footage of narwhals, shedding light on the function of their famed protuberances, according to a study published Feb. 27 in Frontiers in Marine Science. Brendan Rascius, Miami Herald, 4 Mar. 2025 Whether those protuberances make it onto the production vehicle, the latest of which was just shown at the annual CES tech show in Las Vegas, remains to be seen (and hopefully won’t be seen). William Roberson, Forbes, 9 Jan. 2025 There are many different types of foam rollers, but the two main models are: the shorter style with protuberances which is used purely for working on circulation or muscle recovery, and the longer one made of smooth foam without protuberances, used for toning. Enrica Petraglia, Vogue, 13 Sep. 2024 See All Example Sentences for protuberance
Recent Examples of Synonyms for protuberance
Noun
  • However, there will be some warning bells following the sharp sell-off in Novo Nordisk's shares, after the Danish pharmaceutical rival disappointed investors with its sales projections.
    Leonie Kidd, CNBC, 8 Feb. 2026
  • However, SpaceX claims that its Stargaze system was able to provide a new trajectory projection that allowed controllers to maneuver the Starlink bird out of the danger zone.
    David Szondy February 07, New Atlas, 7 Feb. 2026
Noun
  • Other extant primates typically have receding lower jaws, without a distinct protrusion.
    Scott Travers, Forbes.com, 24 Jan. 2026
  • The female’s back is covered in small protrusions that resemble popped kernels of popcorn, inspiring its genus name Zea, derived from the corn plant.
    Aamir Khollam, Interesting Engineering, 16 Oct. 2025
Noun
  • The warm and dry conditions in the West can be traced to a persistent bulge or ridge in the jet stream that has shunted storms and colder air to the north.
    Andrew Freedman, CNN Money, 6 Feb. 2026
  • In other words, Jupiter is flatter at its poles than at its equator, the result of its fast rotation (just under 10 hours) creating an equatorial bulge.
    Keith Cooper, Space.com, 4 Feb. 2026
Noun
  • The Fashionist section focused on occasionwear, from evening gowns to bridal creations by labels including Carmen, Serabella, Maxra Govana, Lacrima and Doridorca, while the IFCO Kids area unveiled childrenswear collections.
    Martino Carrera, Footwear News, 13 Feb. 2026
  • She was involved in multiple sections, starting out in La Casita, a set piece modeled after traditional Puerto Rican homes.
    Joseph Hernandez, Kansas City Star, 13 Feb. 2026
Noun
  • The landscape is lush and mountainous, with waterfalls set alongside granite domes.
    Evie Carrick, Travel + Leisure, 11 Feb. 2026
  • Enslaved people built the Annapolis Capitol dome.
    Baltimore Sun staff, Baltimore Sun, 11 Feb. 2026
Noun
  • Even more interesting is the fact that Noctua is issuing three variants of the cooler with variations in the convexity of the cold plate: a normal, a high-convexity, and a low-convexity model.
    PCMAG, PCMAG, 10 June 2024
  • Exploiting mispricing in the 21st century will depend more on understanding the convexity of outcomes not yet visible.
    Jeff Henriksen, Forbes, 4 Mar. 2021
Noun
  • Next came a swell of questions about the large tattoo that Platner had on his chest, a skull and crossbones widely recognized to be a Nazi death’s-head.
    Mark Leibovich, The Atlantic, 11 Feb. 2026
  • Misinformation and conspiracy theories about the public health system also spread during the pandemic, and longtime anti-vaccine activist groups saw a swell in interest from the wider public.
    Matt Brown, Fortune, 10 Feb. 2026
Noun
  • The building’s trim roof overhang is set to be installed this week, and electric vehicle charger bases are being installed.
    Taylor O'Connor, Kansas City Star, 31 Jan. 2026
  • There’s also new research from OpenAI on capability overhang.
    Sheryl Estrada, Fortune, 28 Jan. 2026

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Cite this Entry

“Protuberance.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protuberance. Accessed 14 Feb. 2026.

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