polygenism
noun/pəˈlɪd͡ʒənɪzəm/
Etymology From poly- + genism?
1
Anthropology, Ethnology, Human sciences, Sciences The belief that humans descended from more than one ancestral pair.
- 2003: Such pigmental indelibility spelt polygenism for some: blacks formed a distinct species altogether, a separate creation. — Roy Porter, Flesh in the Age of Reason (Penguin 2004, p. 248)