migrationist
/mʌɪˈɡreɪʃ(ə)nɪst/ /mʌɪˈɡreɪʃənɪst/noun
1A person who emphasizes the importance of migration in the distribution and evolution of animal and plant species.
2 Archaeol. and Cultural Anthropol. An adherent of the theory of migrationism.
adjective
Of, relating to, or involving migration; migrational; (Archaeol. and Cultural Anthropol. ) of or relating to migrationism.
Origin
Mid 19th century; earliest use found in Joseph Hooker (1817–1911), botanist. From migration + -ist.