protrusion
noun
pro·tru·sion
prō-ˈtrü-zhən 
1
: something (such as an anatomical part or excrescence) that protrudes
2
: the act of protruding : the state of being protruded
Examples of protrusion in a Sentence
bony protrusions on the outside of the elbow
a roof with many protrusions
The pain was caused by a protrusion of a disc in his lower back.
Recent Examples on the Web
The reason whooping cough can bring on such a gnarly, well, cough in the first place is because of how B. pertussis wreaks havoc: These bugs latch on to the cilia (a.k.a. tiny hairlike protrusions) on cells in your respiratory tract and ooze toxins, triggering inflammation and swelling.
—
Erica Sloan, SELF, 13 Feb. 2025
Under such low pressure, the electric field causes positive ions generated from the residual gas in a tube to accelerate and bombard the cathode, creating sharp, nanometer-scale protrusions, which degrade and, ultimately, destroy it.
—Jin-Woo Han, IEEE Spectrum, 23 June 2014
The animals are identified by two protrusions on their lower jaw that appear like upside-down vampire fangs.
—Irene Wright, Miami Herald, 31 Jan. 2025
The downy also can peck at galls or protrusions on goldenrod plants where insect eggs are lurking.
—Sheryl De Vore, Chicago Tribune, 21 Jan. 2025
See All Example Sentences for protrusion
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Erica Sloan, SELF, 13 Feb. 2025
Under such low pressure, the electric field causes positive ions generated from the residual gas in a tube to accelerate and bombard the cathode, creating sharp, nanometer-scale protrusions, which degrade and, ultimately, destroy it.
—Jin-Woo Han, IEEE Spectrum, 23 June 2014
The animals are identified by two protrusions on their lower jaw that appear like upside-down vampire fangs.
—Irene Wright, Miami Herald, 31 Jan. 2025
The downy also can peck at galls or protrusions on goldenrod plants where insect eggs are lurking.
—Sheryl De Vore, Chicago Tribune, 21 Jan. 2025
See All Example Sentences for protrusion
Cite this Entry
“Protrusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protrusion. Accessed 12 Mar. 2025.
Copy CitationKids Definition
protrusion
noun
pro·tru·sion
prō-ˈtrü-zhən
1
: the act of protruding : the state of being protruded
2
: something that protrudes
Medical Definition
protrusion
noun
pro·tru·sion
prō-ˈtrü-zhən
1
: the quality or state of protruding
the protrusion of a jaw
2
: something (as an anatomical part) that protrudes
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