spare-part surgery
US /ˈsper.pɑːrt ˌsɝː.dʒər.i/
UK /ˈsper.pɑːrt ˌsɝː.dʒər.i/
1.
the replacement of a diseased or damaged organ or limb with a healthy one from a donor or an artificial substitute
:
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Advances in medical technology have made spare-part surgery more common.
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The patient underwent successful spare-part surgery for a new heart.