[mi.grate] vi mi.grat.ed ; mi.grat.ing [L migratus, pp. of migrare; perh. akin to Gk ameibein to change] (1697) 1: to move from one country, place, or locality to another
2: to pass usu. periodically from one region or climate to another for feeding or breeding
3: to change position in an organism or substance "filarial worms ~ within the human body" -- mi.gra.tion n -- mi.gra.tion.al adj -- mi.gra.tor n