c. diphtheriae

English Thesaurus

1. a species of bacterium that causes diphtheria (noun.animal)

hypernym	:	corynebacterium,
definition	:	any species of the genus Corynebacterium (noun.animal)

member meronym	:	genus corynebacterium,
definition	:	the type genus of the family Corynebacteriaceae which is widely distributed in nature; the best known are parasites and pathogens of humans and domestic animals (noun.animal)