sphacelus vs necrosis

sphacelus and necrosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
sphacelus	Yes	No	No	No
necrosis	Yes	No	No	No

As nouns, sphacelus and necrosis are synonyms defined as:

sphacelus and necrosis: the localized death of living cells (as from infection or the interruption of blood supply)

Other synonyms of sphacelus include gangrene, mortification.

sphacelus (noun)	necrosis (noun)
the localized death of living cells (as from infection or the interruption of blood supply)	the localized death of living cells (as from infection or the interruption of blood supply)
necrotic tissue; a mortified or gangrenous part or mass