plastic surgery
US /ˈplæs.tɪk ˌsɜːr.dʒər.i/
UK /ˈplæs.tɪk ˌsɜːr.dʒər.i/

1.
medical procedure for changing the appearance of a person's face or body, either to improve it or to repair damage
:
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She decided to undergo plastic surgery to enhance her nose.
•
After the accident, he needed extensive plastic surgery to reconstruct his face.