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 Above the roofs, like an alien protrusion, the lights on a faraway derrick flickered. — Literary Hub, 3 Aug. 2026 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 See All Example Sentences for protrusion

Recent Examples of Synonyms for protrusion

Noun

The projections were based on exit polls and partial counting for ARD television.

— Arkansas Online, Arkansas Online, 21 Sep. 2026
But the most dire projections have not come to pass more than six months into a conflict that has no end in sight.

— Aamer Madhani, Los Angeles Times, 20 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

The Parthenon’s columns famously have a slight inward tilt toward the roof and bulge at the center, which some people theorize balances out the curved stylobate.

— Emma Gometz, Scientific American, 22 Sep. 2026
It’s designed with a flexible, supportive jelly strip and wide sides provide a smooth, bulge-free coverage that looks polished under T-shirts.

— Jacqueline Tempera, PEOPLE, 17 Sep. 2026

Definition of bulge

Noun

The festival also revealed more details of its Made in Baleares section, dedicated to bridging together films from the Balearic Islands.

— Rafa Sales Ross, Variety, 23 Sep. 2026
Two-day passes are also available, as are $10 youth tickets in certain sections and an assortment of VIP experiences.

— The Kansas City Star, Kansas City Star, 23 Sep. 2026

Definition of section

Noun

The sensory dome is expected to be the most expensive feature at a cost of about $153,500, followed by the we-go-round at a cost of about $50,000.

— Ilana Arougheti, Kansas City Star, 17 Sep. 2026
The shoes follow a classic multi-strap Mary Jane design, embellished with tiny golden dome studs and hardware accents decorating the straps, the counter and the toe box.

— Karla Rodriguez, Footwear News, 17 Sep. 2026

Definition of dome

Noun

Engineers who separately examined the building’s exterior supposedly found widespread corrosion in structural components of the soffit panels along the underside of an overhang that wraps around the center.

— Francesca Aton, ARTnews.com, 14 Sep. 2026
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

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

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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 26 Sep. 2026.

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Synonyms of protrusion

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