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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
Richard Lapointe, who died at age 74 in 2020, had Dandy-Walker syndrome, a rare congenital brain malformation that his lawyers say was a factor in his false confession.
—Landon Mion, Fox News, 26 Jan. 2025
His arteriovenous malformation, that tangle of blood vessels in his brain, had begun to bleed.
—Jon Hamilton, NPR, 14 Jan. 2025
Folic Acid Prevents Neural Tube Defects Neural tube defects (NTDs) are congenital malformations (abnormal growth changes during fetal development) of the central nervous system.
—Melissa Nieves, Verywell Health, 8 Jan. 2025
Hospitals were places of high contamination, and the fact that the ailments August and other children suffered from were mostly congenital malformations and noncontagious blood diseases was of no comfort to Manny at the time.
—Camille Bordas, Harper's Magazine, 2 May 2024
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Word History
First Known Use
1800, in the meaning defined above
Dictionary Entries Near malformation
Cite this Entry
“Malformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malformation. Accessed 29 Jan. 2025.
Kids 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
More from Merriam-Webster on malformation
Thesaurus: All synonyms and antonyms for malformation
Nglish: Translation of malformation for Spanish Speakers
Britannica.com: Encyclopedia article about malformation
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