A culture often contains numerous subcultures. Subcultures incorporate large parts of their mother cultures, but in specific instances they may differ radically. Some subcultures achieve such a status that they acquire a name of their own.
See also:grease in their hair. In Grease (musical) and the song 4th Of July, Asbury Park (Sandy) the same term is used.
Biology: A subculture in a population of a microorganism is when one microbe colony in such a population is transfered onto blank growth medium and allowed to freely reproduce.