to move from one place to another; esp., to leave one's country and settle in another
to move from one region to another with the change in seasons, as many birds and some fishes do
to move from place to place to harvest seasonal crops
Origin: from Classical Latin migratus, past participle of migrare, to move from one place to another, change from Indo-European an unverified form meigw-, to change location from base an unverified form mei-, to change, exchange, wander
To move from one country or region and settle in another.
To change location periodically, especially by moving seasonally from one region to another.
Origin: Latin migrāre, migrāt-; see mei-1 in Indo-European roots.
Usage Note: Migrate, which is used of people and animals, sometimes implies a lack of permanent settlement, especially as a result of seasonal or periodic movement. Emigrate and immigrate are used only of people and imply a permanent move, generally across a political boundary. Emigrate describes the move relative to the point of departure: After the Nazis came to power in Germany, many scientists emigrated (that is, left Germany). By contrast, immigrate describes the move relative to the destination: The promise of prosperity in the United States encouraged many people to immigrate (that is, move to the United States).