cold gangrene vs dry gangrene

cold gangrene and dry gangrene both are nouns.

Word	Noun	Adjective	Verb	Adverb
cold gangrene	Yes	No	No	No
dry gangrene	Yes	No	No	No

As nouns, cold gangrene and dry gangrene are synonyms defined as:

cold gangrene and dry gangrene: (pathology) gangrene that develops in the presence of arterial obstruction and is characterized by dryness of the dead tissue and a dark brown color

Other synonyms of cold gangrene include mumification necrosis, mummification.

cold gangrene (noun)	dry gangrene (noun)
(pathology) gangrene that develops in the presence of arterial obstruction and is characterized by dryness of the dead tissue and a dark brown color	(pathology) gangrene that develops in the presence of arterial obstruction and is characterized by dryness of the dead tissue and a dark brown color