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
Along with epilepsy, Benjamin also has cerebral palsy, cortical visual impairment and severe vision impairment caused by underdeveloped optic nerves and malformations in the visual centers of his brain.
—
Jordan Greene, PEOPLE, 19 May 2026
At 14 weeks, Martinez learned the baby had a rare, severe congenital brain malformation.
—Cindy Krischer Goodman, Sun Sentinel, 2 May 2026
If the fetus survives, long-term developmental delays, blindness, hearing loss, permanent teeth and bone malformation, heart defects and rashes can occur.
—Casey Pinto, The Conversation, 1 May 2026
Studies document high rates of miscarriages, congenital malformations and infant mortality among populations exposed to environments contaminated with cobalt and other metals.
—Abraham Nunbogu, Fortune, 29 Apr. 2026
See All Example Sentences for malformation
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Jordan Greene, PEOPLE, 19 May 2026
At 14 weeks, Martinez learned the baby had a rare, severe congenital brain malformation.
—Cindy Krischer Goodman, Sun Sentinel, 2 May 2026
If the fetus survives, long-term developmental delays, blindness, hearing loss, permanent teeth and bone malformation, heart defects and rashes can occur.
—Casey Pinto, The Conversation, 1 May 2026
Studies document high rates of miscarriages, congenital malformations and infant mortality among populations exposed to environments contaminated with cobalt and other metals.
—Abraham Nunbogu, Fortune, 29 Apr. 2026
See All Example Sentences for malformation
Cite this Entry
“Malformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malformation. Accessed 20 May. 2026.
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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