1866 J. A. Partridge iv. ii. 461 This question of race-mixture is now being tried out.
1905 O. Jespersen iii. 47 There we had a real race-mixture, where people speaking two different languages were living in actual contact in the same country.
1999 (Nexis) 31 Dec. j8 At the upper end, there is every possibility that we will see increasing race mixture, and at the bottom end continued segregation and tension.