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

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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 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 The use of Kevlar came as part of Hatfield finding inspiration from the X-15 fighter jet, still to this day the fastest aircraft ever made, while the polarizing tongue protrusion was a nod to Jordan famously sticking out his own while playing. — Ian Servantes, Footwear News, 23 June 2026 Officially, these prominent bumper protrusions were inspired by jet-age design and missile imagery. — Peter Lyon, Forbes.com, 18 June 2026 See All Example Sentences for protrusion

Recent Examples of Synonyms for protrusion

Noun

The projections are a combination of the current Maxwell ratings and actual scoring patterns.

— Loren Maxwell, AJC.com, 12 Aug. 2026
So much of your twenties is about transference and projection.

— Seija Rankin, HollywoodReporter, 12 Aug. 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

An important question before Prime Minister Shah is whether a small landlocked nation with a youth bulge and rising expectations can deliver in the age of tech disruption and changing geopolitics.

— Vasuki Shastry, Forbes.com, 27 July 2026
With the bulge-bracket firms the clear winners, choosing a VC has become simpler.

— Robert Frank, CNBC, 14 July 2026

Definition of bulge

Noun

Its skyline swings from modern towers to centuries-old domes, and for first-time visitors—or anyone short on time—the sheer volume of things to see and do can feel intimidating.

— CNT Editors, Condé Nast Traveler, 9 Aug. 2026
In addition to the main museum café, there are pop-up experiences at different times of year, such as the Trio coffee shop beneath the museum’s latticework dome, and the Art Lounge, which opens on the rooftop in the cooler months.

— Amy Bradford, Architectural Digest, 5 Aug. 2026

Definition of dome

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

But developers accustomed to CUDA may need to rewrite and optimize substantial portions of their existing code before moving their training workloads to Ascend.

— Neetika Walter, Interesting Engineering, 11 Aug. 2026
That effectively takes a large portion of the National Guard off the table, narrowing the pool of available units at a time when the force is also balancing deployments and other commitments overseas.

— Steven Beynon, ABC News, 11 Aug. 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 15 Aug. 2026.

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Synonyms of protrusion

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