peptococcus
noun
pep·to·coc·cus
| \ ˌpep-tə-ˈkäk-əs
\
\
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 \
: any bacterium of the genus Peptococcus
\
: any bacterium of the genus Peptococcus