n 1  cap  :  a large genus of usu. gram-positive nonmotile bacteria that do not produce spores, occur as irregular or branching rods often banded with metachromatic granules, and include a number of important animal and plant parasites - see DIPHTHERIA   2  pl  -ria   :  any bacterium of the genus Corynebacterium .
 
 
 
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