Noun | 1. | gangrenous emphysema - (pathology) a deadly form of gangrene usually caused by clostridium bacteria that produce toxins that cause tissue death; can be used as a bioweapon clostridial myonecrosis, emphysematous gangrene, emphysematous phlegmon, gas gangrene, gas phlegmon, progressive emphysematous necrosis pathology - the branch of medical science that studies the causes and nature and effects of diseases |