sphacelate

From sphacel (“gangrene”) +‎ -ate (verb-forming suffix).

sphacelate (third-person singular simple present sphacelates, present participle sphacelating, simple past and past participle sphacelated)

1. (transitive, medicine) To affect with gangrene, cause to gangrene, mortify.
2. (intransitive, medicine) To become gangrenous.

• sphacelation

From sphacel +‎ -ate (adjective-forming suffix).

sphacelate (not comparable)

1. Affected with gangrene; gangrenous, necrotic.
2. (botany) Dark and withered as though dead.