Definition of protrusionnext

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 The long stretch between Northern and Central Virginia is the lobster’s body, while its protrusions into Central and Western Virginia resemble its claws. Phillip M. Bailey, USA Today, 21 Apr. 2026 An unnoticed protrusion on the floor she’s dragged across renders her injury considerably worse, turning temporary acute discomfort into a real medical emergency. Dennis Harvey, Variety, 14 Mar. 2026 Another cutesy promo video shows the robot phone coming to life, flipping out of a protrusion next to the usual camera bump in the back of the device, and even meeting a humanoid robot face-to-face. Victor Tangermann, Futurism, 25 Feb. 2026 The 10a’s completely flat back is a rarity among smartphones, most of which have substantial protrusions that house their camera optics, causing those devices to wobble when placed on a table. Bloomberg, Mercury News, 18 Feb. 2026 See All Example Sentences for protrusion
Recent Examples of Synonyms for protrusion
Noun
  • There is no question that varying projections of timing and severity of job loss caused by AI make designing such a major job creation strategy an unprecedented challenge.
    Gene Sperling, Time, 1 July 2026
  • According to International Franchise Association projections, the franchising industry was still expected to experience growth and contribute to job creation in the United States, even in an uncertain economy.
    Bob Bernotas, Forbes.com, 1 July 2026
Noun
  • As does the Buddha’s Hand, a pulp-less lemon with fragrant, yellowy finger-like protuberances best for zesting, candying, and making infusions for teas, simple syrups, marinades, and libations.
    Catharine Kaufman, San Diego Union-Tribune, 12 Apr. 2026
  • Described as bright green with small protuberances on its back, the frog belongs to the Gastrotheca genus, a group of marsupial frogs found in Central and South America.
    Hanna Wickes, Charlotte Observer, 5 Apr. 2026
Noun
  • During matches earlier this year, bulges could be seen in the shoulder seams on jerseys for teams including France and Uruguay, the Guardian reported.
    Claire Rush, Fortune, 28 June 2026
  • During matches earlier this year, bulges could be seen in the shoulder seams on jerseys for teams including France and Uruguay, the Guardian reported.
    ABC News, ABC News, 26 June 2026
Noun
  • As the music builds, entire sections of the crowd rise to their feet, clapping, chanting and dancing together.
    Ayushi Shah, CNN Money, 4 July 2026
  • The elevated section of the cabin also features a large rooftop terrace, ideal for enjoying the sun during the day, or sleeping under the stars at night.
    Bridget Borgobello July 03, New Atlas, 4 July 2026
Noun
  • Temperatures will decline slightly Friday and Saturday across portions of the UK and France, but the more significant relief for these areas will come Sunday as the heat dome continues to shift eastward.
    Taylor Ward, CNN Money, 24 June 2026
  • Cosm has really cut its teeth on a lot of live sports and concert films, with the dome shape and stadium seating designed to give the illusion of being on the field or in the front row.
    Brian Welk, IndieWire, 24 June 2026
Noun
  • That has been one of the biggest overhangs on the stock this year.
    Jeff Marks, CNBC, 1 July 2026
  • Run the lights along the perimeter—whether that’s along a fence line, roof overhang, or between posts—to outline the space with a soft, ambient glow.
    Wendy Rose Gould, Martha Stewart, 29 June 2026
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
Noun
  • Damaged or bruised portions of fruits and vegetables should be cut away, or the produce should be discarded, and produce should generally be refrigerated within two hours of purchase, per MCHD.
    Angel Saunders, PEOPLE, 30 June 2026
  • Temperatures are expected to climb into the 90s across a large portion of the central and eastern United States, with some communities seeing multiple days of hot and humid conditions before the Fourth of July holiday weekend arrives.
    Janet Loehrke, USA Today, 30 June 2026

Browse Nearby Words

Cite this Entry

“Protrusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protrusion. Accessed 6 Jul. 2026.

More from Merriam-Webster on protrusion

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster