brachioplasty

noun
bra·​chio·​plas·​ty | \ ˈbrā-kē-ō-ˌpla-stē How to pronounce brachioplasty (audio) \
plural brachioplasties

Medical Definition of brachioplasty

: plastic surgery that removes excess skin and fat from the undersurface of the upper arm chiefly for cosmetic purposes to reduce sagging

called also arm lift