noun. Plural form of staphylococcus.

noun. spherical Gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infections

"Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are '' good bacteria '' when on the surface, where they can reduce inflammation."

Coccus  cocci  

acidophilus  bioluminescent  coliform  facultative  faecal