subculture

noun
sub*cul*ture \ ˈsəb-ˌkəl-chər \
1885{ds||1|a|}
  • a culture (as of bacteria) derived from another culture
  • an act or instance of producing a subculture
  • an ethnic, regional, economic, or social group exhibiting characteristic patterns of behavior sufficient to distinguish it from others within an embracing culture or society
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