"gangrene" in the noun sense
1. gangrene, sphacelus, slough
necrotic tissue a mortified or gangrenous part or mass
2. necrosis, mortification, gangrene, sphacelus
the localized death of living cells (as from infection or the interruption of blood supply)
"gangrene" in the verb sense
1. necrose, gangrene, mortify, sphacelate
"the tissue around the wound necrosed"
Source: WordNet® (An amazing lexical database of English)
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