Synonyms for Gas Phlegmon (same or very similar meaning)
WordNet sense 1 ((pathology) a deadly form of gangrene usually caused by clostridium bacteria that produce toxins that cause tissue death; can be used as a bioweapon):
gas gangrene, clostridial myonecrosis, emphysematous gangrene, emphysematous phlegmon, gangrenous emphysema, progressive emphysematous necrosisFrom the ODE community, based on WordNetadd/edit