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 Tiny projections stick out from the stalk, and the crooked tip has structures called a conical protuberance, a globular head and a rugged flap. Katie Cottingham, Smithsonian Magazine, 9 Sep. 2024 These extreme eruptions on the sun, if large enough, may be visible as tiny pink protuberances peaking around the edge of the moon. Dean Regas, The Enquirer, 7 Apr. 2024 When Kahan threw the typically upbeat floral protuberance, Tango obligingly chased after it just like a real dog would. Kory Grow, Rolling Stone, 27 Mar. 2024 But mechanical gimbals are not exactly aerodynamic—one example is that massive protuberance on the nose of Predator drones. IEEE Spectrum, 30 Nov. 2011 See All Example Sentences for protuberance
Recent Examples of Synonyms for protuberance
Noun
  • Their current 53-38 record is in the bank, however, and most projection methods give them an 80%+ chance to make the postseason.
    Tony Blengino, Forbes.com, 9 July 2025
  • The maximum projection surface is 4 meters and all the controls are done by three simple buttons on the base of the projector.
    Alexander Cox, Space.com, 8 July 2025
Noun
  • Folks with acute back pain, disc issues (include herniations, bulgings, and protrusions), and hip labrum injuries, should check with a medical pro first before doing this move, Dr. Yu says.
    Jenny McCoy, SELF, 19 June 2025
  • Early revealed a protrusion of her right shoulder, a permanent disfigurement, caused by a collar bone that was broken on the hill.
    Don Riddell, CNN Money, 25 May 2025
Noun
  • The moon's gravity pulls on Earth's oceans, creating tidal bulges that act like a brake.
    Daisy Dobrijevic, Space.com, 10 July 2025
  • Inexperienced American troops holding the front buckled, creating a bulge in the line, thus giving the ensuing battle its name.
    Noah Hawley, The Atlantic, 2 July 2025
Noun
  • Each section is stuffed with plush microfiber that makes old mattresses feel soft and comfortable.
    Isabel Garcia, People.com, 9 July 2025
  • The historic burial ground, a roughly 25-acre site made up of four different sections, served as Indianapolis' first cemetery before its closure in the late 19th century.
    Jordan Smith, IndyStar, 9 July 2025
Noun
  • The growing dangers of heat waves can already be seen this summer, the researchers noted, pointing to the late June heat dome that settled over the Eastern U.S. and set new daily heat records in at least 50 cities, according to the National Oceanic and Atmospheric Administration.
    Los Angeles Times, Los Angeles Times, 10 July 2025
  • Lessons from the 2021 heat dome The 2021 heat wave was a catalyzing event for the community.
    Brian G. Henning, The Conversation, 9 July 2025
Noun
  • When the loss function has a convenient mathematical property called convexity, this procedure is guaranteed to find the optimal solution.
    Zachary C. Lipton, IEEE Spectrum, 26 Jan. 2016
  • 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
Noun
  • Like all flash floods, this record-breaking water swell resulted from a large amount of rain that drenched one area over a relatively short amount of time.
    Andrea Thompson, Scientific American, 7 July 2025
  • The handle had a gentle palm swell (a little bulge) that was very comfortable to hold.
    Jesse Raub, Bon Appetit Magazine, 3 July 2025
Noun
  • Several large rocks and boulders plunged from the overhang at the top of a popular Utah waterfall — and just barely missed a family swimming below, video shows.
    Brooke Baitinger, Sacbee.com, 26 June 2025
  • Using a paring knife, trim the edges all the way around to a 1-inch overhang.
    Ellen Gray, Saveur, 15 May 2025

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Cite this Entry

“Protuberance.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protuberance. Accessed 18 Jul. 2025.

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