化膿球菌かのうきゅうきん Noun English jmdict 1 noun (common) (futsuumeishi) pyococcus;coccoid bacterium that forms pus
球菌きゅうきん Common Noun Noun English jmdict 1 noun (common) (futsuumeishi)nouns which may take the genitive case particle 'no' coccus