Definicija: Povezave, napetosti in sloga dveh ali več skupin ljudi, ki se zgodovinsko, kulturno, religiozno in fizično razlikujejo. Razlike so zmotno oblikovane na osnovi trdnih bioloških razlik, ki predstavljajo različne vrste človeškega rodu.

Definicija: The associations, tensions or harmony between two or more groups of people distinguished by history, culture, religion or physique: distinctions erroneously construed as being based on consistent biological differences and as representing, in effect, species of a human genus.