What is the meaning of deform?

verb

• Make formless.
  • usage: "the heat deformed the plastic sculpture"
• Twist and press out of shape.
  • synonyms: contort, distort, wring
• Cause (a plastic object) to assume a crooked or angular form.
  • usage: "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar"
  • synonyms: flex, bend, twist, turn
• Become misshapen.
  • usage: "The sidewalk deformed during the earthquake"
• Alter the shape of (something) by stress.
  • usage: "His body was deformed by leprosy"
  • synonyms: distort, strain
• Assume a different shape or form.
  • synonyms: change shape, change form