Synonym Chooser

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

Some common synonyms of protrusion are bulge, projection, and protuberance. While all these words mean "an extension beyond the normal line or surface," protrusion suggests a thrusting out so that the extension seems a deformity.

the bizarre protrusions of a coral reef

When is it sensible to use bulge instead of protrusion?

The meanings of bulge and protrusion largely overlap; however, bulge suggests an expansion caused by internal pressure.

bulges in the tile floor

When is projection a more appropriate choice than protrusion?

The synonyms projection and protrusion are sometimes interchangeable, but projection implies a jutting out especially at a sharp angle.

those projections along the wall are safety hazards

When would protuberance be a good substitute for protrusion?

The words protuberance and protrusion can be used in similar contexts, but protuberance implies a growing or swelling out in rounded form.

a skin disease marked by warty protuberances

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 protrusion This beast looks like a young girl (surely not a coincidence, symbolically speaking), with antler-like protrusions. Noel Murray, New York Times, 14 Apr. 2025 There are two pairs of barbels, or the fleshy, whisker-like protrusions found on some fish, on the new species’ face, according to the study. Irene Wright, Miami Herald, 28 Feb. 2025 Models wore giant gloves made of claws or featured grotesque protrusions. Gemma A. Williams, Forbes, 22 Feb. 2025 The slow-moving creatures, — distinguished by the thorn-like protrusions that cover their bodies — are found up to 3,600 feet below the surface of the ocean. Brendan Rascius, Miami Herald, 25 Mar. 2025 See All Example Sentences for protrusion
Recent Examples of Synonyms for protrusion
Noun
  • That’s despite a projection of 92.9 wins — just a 33-29 record the rest of the way — while the World Series title odds dropped to 10.4% (from 10.6% last week).
    Ryan Ford, Freep.com, 22 July 2025
  • This suggests that while there is still hiring in some areas, corporate projections of new jobs have dropped.
    Erik Sherman, Forbes.com, 21 July 2025
Noun
  • 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
Noun
  • Then there are tests for shape aesthetics that involve bow tie evaluation, outline symmetry, and bulges.
    Kyle Roderick, Forbes.com, 26 July 2025
  • Thurber is a half-inch shorter than Daddy, and his glasses bulge one eye way out like Grandpa’s spectacles did.
    John Updike, New Yorker, 11 July 2025
Noun
  • There was a concrete pipe that used to be part of the town’s sewage system, a section of a bridge that the stream had taken out, and the remains of the Heartbreak Hotel, a storied old apartment building, half of which washed into the river on the night of July 10th.
    John Seabrook, New Yorker, 21 July 2025
  • In the children’s section, each computer station was occupied by a child playing games on full volume.
    Alexandra DeSanctis, National Review, 21 July 2025
Noun
  • World Atlas recommends touring the bronze bell foundry, solar towers and concrete domes.
    Shelby Slade, AZCentral.com, 21 July 2025
  • The United States has entered the peak of summer and a new heat dome — sealing in all that hot, humid air — is about to make millions of people feel every bit of it.
    Mary Gilbert, CNN Money, 21 July 2025
Noun
  • To position, try to get your feeders 5 feet high, 7 feet from structures, and 9 feet below overhangs.
    Parker Hall, Wired News, 11 July 2025
  • In 2023, a University of Kansas student fell from a rocky overhang into Avalanche Creek and was swept into the gorge.
    Addy Bink, The Hill, 10 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
  • Elsewhere, high pressure centered over the Southeast will keep dangerously hot and humid conditions in that region, but strong to severe storms along the perimeter of the high will remain possible across portions of the Plains, Midwest and even across portions of the East Coast.
    Nadine El-Bawab, ABC News, 19 July 2025
  • At least the ending vocal portion, which prompted Jin to stop and look into the crowd, taking in the moment.
    Laura Sirikul, Forbes.com, 19 July 2025

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Cite this Entry

“Protrusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protrusion. Accessed 29 Jul. 2025.

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