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

Among other children needing palliative care, about 18% are living with complications from prematurity, roughly 16% suffer from congenital malformations, and about 16% are dealing with injuries leading to severe neurologic impairment. — Emilee Flynn, The Conversation, 3 Nov. 2026

Someone from Hästens will come to your bedroom thrice a year to massage, fluff and flip those layers, thereby dispensing with whatever malformations your body may have inflicted upon its perfect design and making everything right in the world again. — Jaklin Romine oct. 15, Los Angeles Times, 15 Oct. 2026

Common causes include an aneurysm, high blood pressure, head trauma or arteriovenous malformation. — Minyvonne Burke, NBC news, 5 Oct. 2026

Studies have linked 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, 28 Aug. 2026

Word History

First Known Use

1800, in the meaning defined above

Rhymes for malformation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

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