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
Carlo is credited with healing a 4-year-old Brazilian boy who had a serious pancreatic malformation and a 21-year-old Costa Rican woman who was near death after a bicycle accident.
—
Julia Gomez, USA Today, 3 Sep. 2025
The leading causes of infant mortality in Mississippi are congenital malformations, preterm birth, low birth weight and sudden infant death syndrome (SIDS), according to the state’s news release, in line with CDC data on the top causes nationwide.
—Deidre McPhillips, CNN Money, 22 Aug. 2025
In the last seven years, researchers have linked this form of air pollution to fetal malformation, miscarriages, and stillbirths.
—Anuradha Varanasi, Forbes.com, 23 July 2025
Chiari malformation type 1 is a rare brain condition where the cerebellum, a brain area responsible for balance and posture, droops down slightly through a small hole in the skull called the foramen magnum.
—Ruairi MacKenzie, Discover Magazine, 16 July 2025
See All Example Sentences for malformation
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.
Julia Gomez, USA Today, 3 Sep. 2025
The leading causes of infant mortality in Mississippi are congenital malformations, preterm birth, low birth weight and sudden infant death syndrome (SIDS), according to the state’s news release, in line with CDC data on the top causes nationwide.
—Deidre McPhillips, CNN Money, 22 Aug. 2025
In the last seven years, researchers have linked this form of air pollution to fetal malformation, miscarriages, and stillbirths.
—Anuradha Varanasi, Forbes.com, 23 July 2025
Chiari malformation type 1 is a rare brain condition where the cerebellum, a brain area responsible for balance and posture, droops down slightly through a small hole in the skull called the foramen magnum.
—Ruairi MacKenzie, Discover Magazine, 16 July 2025
See All Example Sentences for malformation
Cite this Entry
“Malformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malformation. Accessed 9 Sep. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share