From Longman Dictionary of Contemporary Englishmiscegenationmis‧ce‧ge‧na‧tion /ˌmɪsədʒəˈneɪʃən $ -sedʒ-/ noun [uncountable] formalSSRSSF when people of different races have a sexual relationship or have children together
Examples from the Corpus
miscegenation• Faced with this living miscegenation, I had spells of getting all minimalist, which rendered things a bit tense.• The tragedies of miscegenation have never been simple - ever since Othello did what he had to do to Desdemona.Origin miscegenation (1800-1900) Latin miscere “to mix” + genus “race” 