quadroon noun. 
[kwɒ'dru:n] Orig. 
quarteron. 
E18.[Spanish cuarterón (through French quarteron) quarter. Later assim. to words in quadr-: see -OON.]1.  A person having one quarter black blood. Also (
rare), a person fourth in descent from a black person, one in each generation being white. 
E18.■ E. Mittelholzer Katrina is fair and has lovely wavy brown hair. She must be a quadroon.2.  transf. The offspring resulting from any similar admixture of blood, or from crossing certain animals. 
E19.  [TahlilGaran] English Dictionary ▲