If something deforms a person's body or something else, it causes it to have an unnatural shape. In technical English, you can also say that the second thing deforms.
例句
Bad rheumatoid arthritis deforms limbs...嚴重的類風濕性關節炎會造成四肢變形。...the ability of a metal to deform to a new shape without cracking.金屬重新塑形而不斷裂的能力
英漢詞典釋義
n.
損形;變形;畸形
a slow longitudinal movement or deformation縱向緩慢的運動或變形
英英詞典釋義
Noun
1. a change for the worse
2. alteration in the shape or dimensions of an object as a result of the application of stress to it
3. the act of twisting or deforming the shape of something (e.g., yourself)