Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to plastic deformation: ductility
1. deformity, especially an alteration in shape or structure.
2. the process of adapting in shape or form.
elastic deformation temporary elongation of tissue when a prolonged force has been applied. See also creep.
plastic deformation permanent elongation of tissue when a prolonged nondisruptive mechanical force has been applied. See also creep.
n any irreversible deformation of tissues.