malformation
noun
mal·for·ma·tion
ˌmal-fȯr-ˈmā-shən 
-fər-
: irregular, anomalous, abnormal, or faulty formation or structure
Examples of malformation in a Sentence
The condition is marked by malformation of the spine.
She underwent surgery to correct a heart malformation.
Recent Examples on the Web
As the National Organization for Rare Disorders explains, lissencephaly is a malformation which makes the brain appear unusually smooth.
—
Daniel R. Depetris, Newsweek, 10 Jan. 2025
Severe symptoms and certain types of Chiari malformation can be fatal, the Cleveland Clinic says.
—Vanessa Etienne, People.com, 27 Dec. 2024
Venous malformations are rare, affecting up to 1 in every 5,000 people, according to the Cleveland Clinic.
—Adrianna Rodriguez, USA TODAY, 20 Dec. 2024
The rare brain malformation occurs in utero and is incurable, just like Stage 4 liver cirrhosis.
—Daniel Gonzalez, The Arizona Republic, 15 Dec. 2024
See all Example Sentences for malformation 
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Daniel R. Depetris, Newsweek, 10 Jan. 2025
Severe symptoms and certain types of Chiari malformation can be fatal, the Cleveland Clinic says.
—Vanessa Etienne, People.com, 27 Dec. 2024
Venous malformations are rare, affecting up to 1 in every 5,000 people, according to the Cleveland Clinic.
—Adrianna Rodriguez, USA TODAY, 20 Dec. 2024
The rare brain malformation occurs in utero and is incurable, just like Stage 4 liver cirrhosis.
—Daniel Gonzalez, The Arizona Republic, 15 Dec. 2024
See all Example Sentences for malformation
Dictionary Entries Near malformation
Cite this Entry
“Malformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malformation. Accessed 18 Jan. 2025.
Copy CitationKids Definition
malformation
noun
mal·for·ma·tion
ˌmal-fȯr-ˈmā-shən
-fər-
: a misshapen, abnormal, or faulty formation or structure
malformation of the knee joint
Medical Definition
malformation
noun
mal·for·ma·tion
ˌmal-fȯr-ˈmā-shən, -fər-
: irregular, anomalous, abnormal, or faulty formation or structure
congenital malformations
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