Definition of micrococcus
noun (plural micrococci /-ˈkäkˌ(s)ī, -ˈkäk(s)ē/)
a spherical bacterium that is typically found on dead or decaying organic matter. Nonpathogenic forms are found on human and animal skin. - Family Micrococcaceae of Gram-positive nonmotile bacteria, in particular the genera Micrococcus and Staphylococcus