Polyculturalism-a conceptualization of culture that, rather than examine cultures as discrete social historical phenomena, instead focuses on the extent of their imbrication, that is the varying ways in which cultures and histories are inextricable, interweaved. It contrasts with multiculturalism, which often regards cultures as discrete entities.
This theory is elaborated upon at length in Vijay Prashad’s book Everybody Was Kung Fu Fighting.