de·​form | \ di-ˈfȯrm How to pronounce deform (audio) , dē- \
deformed; deforming; deforms

Definition of deform

transitive verb

1 : to spoil the form of
2a : to spoil the looks of : disfigure a face deformed by bitterness
b : to mar the character of a marriage deformed by jealousy
3 : to alter the shape of by stress

intransitive verb

: to become misshapen or changed in shape

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Other Words from deform

deformable \ di-​ˈfȯr-​mə-​bəl How to pronounce deformable (audio) , dē-​ \ adjective

Choose the Right Synonym for deform

deform, distort, contort, warp means to mar or spoil by or as if by twisting. deform may imply a change of shape through stress, injury, or accident of growth. a face deformed by hatred distort and contort both imply a wrenching from the natural or normal, but contort suggests a more involved twisting and a more grotesque and painful result. the odd camera angle distorts the figure disease had contorted her body warp indicates an uneven shrinking that bends or twists out of a flat plane. warped floorboards

Examples of deform in a Sentence

The disease eventually deforms the bones. The disease eventually causes the bones to deform.
Recent Examples on the Web Its rotors experience centrifugal forces that deform them against the apex seals lining the combustion chambers, which improves the sealing of those chambers. Matthew Jancer, Popular Mechanics, "The Rhombus Rotary Engine: Can a Quirky New Design Top the Famous Wankel?," 18 Jan. 2019 Sleeping Pad One night while lying down in his tent, Fox heard a few pops and then felt his inflatable sleeping pad deform. Amelia Arvesen, Outside Online, "When to Replace Your Camping Gear," 21 Apr. 2020 Two supermarkets on the first floor were being remodeled, and a pillar reportedly deformed a few minutes before the collapse, the official Xinhua News Agency said Sunday, quoting a district official. Fox News, "Mom, son rescued from coronavirus quarantine hotel collapse in China after 52 hours trapped," 11 Mar. 2020 Two supermarkets on the first floor were being remodeled, and a pillar reportedly deformed a few minutes before the collapse, Xinhua said Sunday, quoting a district official. Time, "10-Year-Old Survives 52 Hours Trapped in Rubble After Coronavirus Quarantine Hotel Collapses in China," 10 Mar. 2020 Two supermarkets on the first floor were being remodeled, and a pillar reportedly deformed a few minutes before the collapse, Xinhua said Sunday, quoting a district official. USA TODAY, "Mom, son emerge safe after 52 hours trapped in rubble of collapsed quarantine site in China," 10 Mar. 2020 More allegations came out claiming many of his animals were deformed due to inbreeding and not giving the moms enough healthy food while pregnant. Gina Vaynshteyn,, "Your Guide To Netflix’s Absolutely Wild New Docu-Series The Tiger King," 24 Mar. 2020 These kinds of events recurred several times over the next few months, other participants confirmed. The deforming ice caused problems for certain parts of the research camp, forcing scientists to relocate equipment. Chelsea Harvey, Scientific American, "Frozen in Dwindling Ice, a Historic Expedition Finds a “New Arctic”," 10 Jan. 2020 His machine would use qubits that could be stretched and deformed, so to speak, while retaining their information. Sophia Chen, Wired, "Two Physicists Bet Over a Quantum Computing Moon Shot," 9 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deform.' 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 deform

15th century, in the meaning defined at transitive sense 1

History and Etymology for deform

Middle English, from Anglo-French or Latin; Anglo-French desfurmer, from Latin deformare, from de- + formare to form, from forma form

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Time Traveler for deform

Time Traveler

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

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Statistics for deform

Last Updated

16 May 2020

Cite this Entry

“Deform.” Dictionary, Merriam-Webster, Accessed 26 May. 2020.

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More Definitions for deform


How to pronounce deform (audio)

English Language Learners Definition of deform

: to change something so that it no longer has its normal or original shape


de·​form | \ di-ˈfȯrm How to pronounce deform (audio) \
deformed; deforming

Kids Definition of deform

: to spoil the form or the natural appearance of

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More from Merriam-Webster on deform

Thesaurus: All synonyms and antonyms for deform

Rhyming Dictionary: Words that rhyme with deform

Spanish Central: Translation of deform

Nglish: Translation of deform for Spanish Speakers

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