de·​for·​mi·​ty | \ di-ˈfȯr-mə-tē How to pronounce deformity (audio) , dē- \
plural deformities

Definition of deformity

1 : the state of being deformed
2 : imperfection, blemish: such as
a : a physical blemish or distortion : disfigurement
b : a moral or aesthetic flaw or defect

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Examples of deformity in a Sentence

a disease causing deformity of the spine a primitive culture that cast aside infants born with deformities, allowing them to die of exposure to the elements
Recent Examples on the Web The deformity is often associated with high heels and constrictive footwear, although other factors like genetics play a role. Katie Hunt, CNN, 10 June 2021 Showcasing stunning swirls and knots, burl wood is the result of a tree deformity. Jessica Bennett, Better Homes & Gardens, 12 May 2021 Stanley was born without most of his external left ear, due to a congenital deformity called Grade 3 Microtia. George Varga, San Diego Union-Tribune, 28 Feb. 2021 All in all, the deer appears to have stuck its nose in a bucket of grenades, injured it in some other manner, or perhaps had a genetic deformity. Josh Honeycutt, Outdoor Life, 24 Feb. 2021 That hasn't been the case in recent years for Rupp, who in fall 2018 underwent surgery for Haglund's deformity, an enlargement on the heel bone that necessitated temporarily detaching his left Achilles tendon. Jeff Metcalfe, The Arizona Republic, 4 Mar. 2021 Next year, surgeons can qualify for enhanced reimbursements because the FDA deemed the technology improves the standard of care for debilitating adult spinal deformity. Mike Freeman, San Diego Union-Tribune, 16 Dec. 2020 For example, some people may have a facial deformity that prevents wearing a mask. Kristen Taketa, San Diego Union-Tribune, 12 Nov. 2020 Christina preferred mask-wearing to hide her chin deformity. Susan Shapiro, Wired, 22 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deformity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of deformity

15th century, in the meaning defined at sense 1

History and Etymology for deformity

Middle English deformite, from Middle French defformeteit, from Latin deformitat-, deformitas, from deformis deformed, from de- + forma

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Learn More About deformity

Time Traveler for deformity

Time Traveler

The first known use of deformity was in the 15th century

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Statistics for deformity

Last Updated

15 Jun 2021

Cite this Entry

“Deformity.” Dictionary, Merriam-Webster, Accessed 24 Jun. 2021.

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More Definitions for deformity



English Language Learners Definition of deformity

: a condition in which part of the body does not have the normal or expected shape


de·​for·​mi·​ty | \ di-ˈfȯr-mə-tē How to pronounce deformity (audio) \
plural deformities

Kids Definition of deformity

1 : the condition of having a physical flaw
2 : a flaw in something and especially in the body of a person or animal


de·​for·​mi·​ty | \ di-ˈfȯr-mət-ē How to pronounce deformity (audio) \
plural deformities

Medical Definition of deformity

1 : the state of being deformed
2 : a physical blemish or distortion deformities caused by thalidomide


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