Miscegenation
Miscegenation is the genetic admixture that occurs among peoples of different races and among peoples of different ethnic groups. Historically, miscegenation has been socially controversial and subject to legal proscription in racist societies and in racialist societies that enforce racial segregation, hierarchical systems of racial caste, and a culture of social conservatism. The word 'miscegenation' has various adjective forms, including "miscegenated", "miscegenist", and "miscegenetic"; in contemporary English usage, there are multiple equivalent terms with less negative connotations, including "interethnic", "mixed-race", "multiethnic", "multiracial", and "interracial".