ethnocide
eth no cide |ˈeTHnəˌsīd ˈɛθnəsaɪd | ▶noun the deliberate and systematic destruction of the culture of an ethnic group.
ethnocide |ˈɛθnə (ʊ )sʌɪd | ▶noun [ mass noun ] the deliberate and systematic destruction of the culture of an ethnic group.