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

Relevance

Antonyms & Near Antonyms

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 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 Prolapse or protrusion of hemorrhoids don’t go back in. — Tom Gavin, EverydayHealth.com, 29 Apr. 2026 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 See All Example Sentences for protrusion

Recent Examples of Synonyms for protrusion

Noun

As constellations expand for broadband, Earth observation, and other purposes, projections of 25,000 or more satellites by 2030 carrying hundreds of thousands of petabytes of data continue to rise.

— Chuck Brooks, Forbes.com, 29 July 2026
Pereira plans to add 35mm and 70mm projection and program first-run movies, classic films and special events.

— Pat Saperstein, Variety, 29 July 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

Whether driven by admiration or nostalgia for his first spell, the club’s fans flooded the comments section welcoming back their hero.

— Guillermo Rai, New York Times, 24 July 2026
All of these tariffs are being instituted using a variety of different statutes, known by three-digit numbers - 122, 338, 232, 301 - for the sections of laws being invoked.

— Danielle Kurtzleben, NPR, 24 July 2026

Definition of section

Noun

The outdoor swimming pool and loungers overlook the surrounding countryside, and the sauna in a traditional dome is ideal for aching legs.

— Condé Nast, Condé Nast Traveler, 27 July 2026
The moist air was also producing other volatility around the top of the heat dome, including the risk of severe thunderstorms, flash flooding and hail around the Great Lakes on Sunday.

— ABC News, ABC News, 26 July 2026

Definition of dome

Noun

Hong Kong is enjoying a listings revival, the CSRC's blessing removes the regulatory overhang that killed London, and the exchange's investor base needs no tutorial on Chinese supply chains.

— Drew Bernstein, Forbes.com, 28 July 2026
Lightly coat a 13- x 9-inch baking pan with cooking spray; line with parchment paper, leaving a 2-inch overhang on long sides; set aside.

— Erin Merhar, Southern Living, 26 July 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

With a spotlight on youth sports nationwide, many young athletes forge their identity around sports and dedicate a large portion of their free time to improvement.

— Charles Baggarly, Fort Worth Star-Telegram, 28 July 2026
While the details have not been made public, the deal negotiated by Morales and Webb reportedly would have allowed PortMiami to pay a portion of the acquisition price over a decade or more.

— Douglas Hanks, Miami Herald, 28 July 2026

Definition of portion

Browse Nearby Words

protruding

protrusion

protrusions

See all Nearby Words

Cite this Entry

Style

“Protrusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/protrusion. Accessed 1 Aug. 2026.

Copy Citation

Synonyms of protrusion

noun

Synonym Chooser

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on protrusion

More from Merriam-Webster

Word of the Day

spindrift

Popular in Grammar & Usage

7 Pairs of Commonly Confused Words

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

Why does English have so many silent letters?

Your vs. You're: How to Use Them Correctly

Popular in Wordplay

Dutch Treat and French Leave: Eight Place-Based Compounds

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

The Words of the Week - Jul. 31

Even More Bird Names that Sound Like Insults (and Sometimes Are)

Popular

7 Pairs of Commonly Confused Words

Dutch Treat and French Leave: Eight Place-Based Compounds

14 Phobias You Probably Haven't Heard Of

Games & Quizzes