MISCEGENATION Meaning of MISCEGENATION in English [ ˌmɪsɪdʒɪ'neɪʃ(ə)n ]■ noun the interbreeding of people of different races.OriginC19: formed irregularly from L. miscere 'to mix' + genus 'race' + -ation . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004