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Definition of malformation
malformation
/ˌmæl.fɔːrˈmeɪ.ʃən/
mal · for · ma · tion
Plural:malformations
•Adjective:malformed
malformation Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
4
malformation Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The state or condition of being abnormally formed or shaped, or an instance of an abnormal anatomical or structural defect in a body part, organ, or organism.
Example
"The prenatal ultrasound allowed doctors to detect a minor congenital heart malformation before birth."
Synonyms
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View all antonyms for malformation• Rhymes for malformation
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Word Origin & Etymology
First recorded in the early 19th century, formed from the prefix 'mal-' (from Latin 'malus', meaning 'bad') and 'formation' (from Latin 'formatio', meaning 'a shaping').
Cite this Entry
Wordmom. (2026). Definition of Malformation. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/malformation