deform

(verb) make formless. Examples: "The heat deformed the plastic sculpture."

(verb) twist and press out of shape. Synonyms: contort, distort, wring.

(verb) cause (a plastic object) to assume a crooked or angular form. Synonyms: flex, bend, twist, turn. Examples: "Bend the rod." "Twist the dough into a braid." "The strong man could turn an iron bar."

(verb) become misshapen. Examples: "The sidewalk deformed during the earthquake."

(verb) alter the shape of (something) by stress. Synonyms: distort, strain. Examples: "His body was deformed by leprosy."

(verb) assume a different shape or form. Synonyms: change shape, change form.