deform
C1Formal, Technical
Definition
Meaning
To change or spoil the usual or natural shape, form, or appearance of something, especially in a way that makes it worse or ugly.
To cause something to deviate from its normal or intended characteristics or structure. Can also refer to altering the shape or dimensions in a technical context (e.g., materials science).
Linguistics
Semantic Notes
Typically carries a negative connotation of damage, injury, or undesired alteration. The change is often physical but can be metaphorical (e.g., deforming an argument).
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. Spelling and pronunciation are consistent. Slightly higher frequency in American technical/engineering contexts.
Connotations
Identical negative connotation of unwanted disfigurement or distortion in both variants.
Frequency
Low to medium frequency in both. More common in written, academic, or technical registers than in everyday conversation.
Vocabulary
Collocations
Grammar
Valency Patterns
[NP] deform [NP] (transitive)[NP] deform (intransitive, often with adverbial like 'under heat')Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None specific. The verb is used literally or metaphorically.”
Usage
Context Usage
Business
Rare. Might be used metaphorically: 'The new regulations could deform the market.'
Academic
Common in materials science, engineering, physics, and biology: 'The applied stress will deform the specimen.'
Everyday
Limited. Usually for visible damage: 'The crash deformed the car's frame.'
Technical
Core term in engineering and manufacturing, describing the change in shape of an object under force.
Examples
By Part of Speech
verb
British English
- The intense heat from the fire deformed the steel girder.
- A congenital condition can deform the bones.
American English
- The car's bumper was deformed in the collision.
- Over-tightening can deform the threads on the bolt.
adverb
British English
- The metal was deformed permanently.
- The plastic bag hung deformedly from the branch.
American English
- The frame was deformed irreversibly.
- The box arrived deformedly, its corners crushed.
adjective
British English
- The deformed branch was cut from the tree.
- They studied the deformed structure under a microscope.
American English
- The part was rejected due to a deformed flange.
- The old, deformed key no longer fit the lock.
Examples
By CEFR Level
- The accident deformed the bicycle's wheel.
- Don't sit on the box, you'll deform it.
- Prolonged pressure can deform the cartilage in your ears.
- The artist used heat to deliberately deform the glass sculpture.
- The tectonic forces over millennia deformed the rock strata into dramatic folds.
- Critics argued that the stringent censorship laws would deform the cultural landscape.
Learning
Memory Aids
Mnemonic
Think of 'DE-' (reverse/negate) + 'FORM' (shape). To deform is to take the form *away* or ruin the form.
Conceptual Metaphor
ARGUMENT/TRUTH IS A SHAPED OBJECT: 'His bias deformed the facts.' IDEAS ARE PHYSICAL STRUCTURES: 'Prejudice deforms one's worldview.'
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'transform' (преобразовывать). 'Deform' is negative. The closest equivalent is 'деформировать' or 'искажать'.
Common Mistakes
- Using 'deform' to mean simply 'change shape' without the negative connotation (use 'reshape' instead). Confusing 'deform' (spoil shape) with 'reform' (improve).
Practice
Quiz
In which context is 'deform' used most appropriately?
FAQ
Frequently Asked Questions
'Deform' primarily refers to changing the physical shape or structure, often permanently. 'Distort' can mean to deform, but is also used more broadly for twisting meaning, truth, sounds, or images out of their normal state.
Yes, the past participle 'deformed' is commonly used as an adjective (e.g., 'a deformed limb'). The adjective 'deform' itself is rare and usually hyphenated in compound adjectives (e.g., 'heat-deform').
It is neutral but tends to appear more in formal, academic, or technical writing. In everyday speech, people might use simpler words like 'bend out of shape', 'misshape', or 'damage'.
The primary noun is 'deformation'. 'Deformity' refers specifically to a condition of being deformed, especially of a body part.