multiregionalist
/ˌmʌltɪˈriːdʒ(ə)nəlɪst/ /ˌmʌltɪˈriːdʒ(ə)n(ə)lɪst/ /ˌmʌltɪˈriːdʒən(ə)lɪst/Physical Anthropol.
noun
A supporter or adherent of the multiregional theory of human evolution.
Origin
1990s; earliest use found in New Scientist. From multi- + regionalist, after multiregional, multiregionalism.