mixed blood
/ˌmɪks(t) ˈblʌd/noun
1Descent involving two or more different races or ethnic groups. Usually of mixed blood.
2A person of such descent.
adjective
Usually with hyphen. Descended from two or more different races or ethnic groups.
Origin
Early 19th century; earliest use found in Samuel R. Brown (1775–1817). From mixed + blood.