peptococcus

noun
pep·​to·​coc·​cus | \ ˌpep-tə-ˈkäk-əs How to pronounce peptococcus (audio) \

Medical Definition of peptococcus

1 capitalized : a genus of anaerobic gram-positive coccal bacteria that do not form spores and are now considered to comprise a single species (P. niger)
2 plural peptococci\ -​ˈkäk-​ˌ(s)ī How to pronounce peptococci (audio)\ : any bacterium of the genus Peptococcus

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