I. “+ noun
Etymology: sub- + culture
1.
a. : a culture (as of bacteria) derived from another culture
b. : an act or instance of subculturing or of producing a subculture
2. : an ethnic, regional, economic, or social group exhibiting characteristic patterns of behavior sufficient to distinguish it from others within an embracing culture or society
a criminal subculture
II. transitive verb
: to culture (as bacteria) anew on a fresh medium by inoculation from an older culture