malformation

noun

mal·​for·​ma·​tion ˌmal-fȯr-ˈmā-shən How to pronounce malformation (audio)
-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
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.
Acutis is credited with two miracles – the healing of a 4-year-old Brazilian boy with a serious pancreatic malformation and of a 21-year-old Costa Rican woman who was near death after a tragic bicycle accident. Joshua McElwee, USA Today, 16 Apr. 2025 Research has connected phthalates with reproductive problems, such as genital malformations and undescended testes in baby boys and lower sperm counts and testosterone levels in adult males. Sandee Lamotte, CNN Money, 15 Apr. 2025 The model had been battling arteriovenous malformation (AVM), a rare brain condition. Jake Kanter, Deadline, 11 Apr. 2025 Both are sources of vitamin B9 and essential nutrients that help prevent neural tube defects (NTDs), a type of congenital malformation. Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 7 Apr. 2025 See All Example Sentences for malformation

Word History

First Known Use

1800, in the meaning defined above

Time Traveler
The first known use of malformation was in 1800

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Cite this Entry

“Malformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malformation. Accessed 22 May. 2025.

Kids Definition

malformation

noun
mal·​for·​ma·​tion ˌmal-fȯr-ˈmā-shən How to pronounce malformation (audio)
-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- How to pronounce malformation (audio)
: irregular, anomalous, abnormal, or faulty formation or structure
congenital malformations
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