PROTRUSION Synonyms: 61 Similar and Opposite Words

Q: 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

Q: 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

Q: 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

Q: 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

protrusion

noun

prō-ˈtrü-zhən

Definition of protrusion

as in projection

a part that sticks out from the general mass of something the bizarrely shaped protrusions of a coral reef

Synonyms & Similar Words

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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 Burls are sound, hard, woody swellings or protrusions that form on the trunks, branches, or roots of trees. — Pamm Cooper, Hartford Courant, 25 July 2026 Visitors may have noticed that Odorysseus’ spadix — the conic protrusion emerging upward from the plant — was much taller than Odora’s, which had caved in. — Emily Tarinelli, Los Angeles Times, 14 July 2026 Surgeons noted that the man appeared in good health before the surgery, reporting no symptoms besides the painless protrusion. — Beth Mole, ArsTechnica, 9 July 2026 Traditional control surfaces create gaps and protrusions that increase radar cross-section and require constant adjustments in fly-by-wire systems. — Chris Young, Interesting Engineering, 24 June 2026 See All Example Sentences for protrusion

Recent Examples of Synonyms for protrusion

Noun

In a statement, the companies cited McKinsey projections expecting AI agents will handle $3 trillion to $5 trillion of global consumer commerce by 2030.

— Evelyn Cheng, CNBC, 10 Sep. 2026
From November through the end of the year, families can visit to view snowflake projections and learn how to build a life-sized igloo.

— Claire Harutunian, Charlotte Observer, 9 Sep. 2026

Definition of projection

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

Definition of protuberance

Noun

Bra bands that dig in and have minimal side coverage can create bulges under your tops and dresses, but this under-$20 Warners style does the opposite, according to shoppers.

— Jeaneen Russell, PEOPLE, 2 Sep. 2026
Monitoring stars by the hundreds of millions is necessary for the rare and fleeting events Roman’s bulge survey is most primed to find.

— Adam Kovac, Scientific American, 29 Aug. 2026

Definition of bulge

Noun

Some of those railings have been removed across various sections of the ground and replaced by additional seats, leading to an increase in capacity of around 500.

— Chris Waugh, New York Times, 4 Sep. 2026
Peel the tangerines and/or clementines, then separate into clusters of 3 or 4 sections, removing any especially egregious stringy bits.

— ABC News, ABC News, 3 Sep. 2026

Definition of section

Noun

Signs point towards the heat dome holding fairly steady across the Plains through the next two weeks before temperatures trend back towards average.

— Doyle Rice, USA Today, 5 Sep. 2026
Many of the 76 rooms and suites include private terraces overlooking Gran Via with the upper floor rooms facing the ornate gold dome of the Metropolis, one of Madrid’s most famous buildings.

— Eddi Fiegel, Robb Report, 3 Sep. 2026

Definition of dome

Noun

Volatility tends to ease in November, with the VIX falling around 4% as the midterm results remove a key political overhang and provide investors with greater clarity on the policy backdrop, said James Ooi, market strategist at Tiger Brokers.

— Joanna Ossinger,Justina Lee, CNBC, 10 Sep. 2026
Using the parchment overhang, transfer the baked slab to a cutting board.

— ABC News, ABC News, 8 Sep. 2026

Definition of overhang

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

On the women’s side, Aryna Sabalenka faces Linda Noskova in the early window, with Jessica Pegula and Emma Navarro in an all-American matchup in the late portion.

— Chris Branch, New York Times, 8 Sep. 2026
Significant flash flooding and mudslides across Kauai County and portions of the Big Island (Hawaii County).

— Dinah Voyles Pulver, USA Today, 8 Sep. 2026

Definition of portion

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protruding

protrusion

protrusions

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“Protrusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protrusion. Accessed 12 Sep. 2026.

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Synonyms of protrusion

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