Definition of "out-migration" []

• Migration out of country or territory; emigration. (noun)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "As 30 percent of the land in Detroit became vacant through out-migration and the clearing away of old houses, factories and buildings, people began to “adopt” small plots of land to grow their gardens."
• "You would even begin to see substantial out-migration, though its very difficult for Americans to migrate to other countries, though I guess you could always sneak into Mexico."
• "Such factors include availability of vacant land for construction, changing household size, composition of age groups, birth and death rates, in - and out-migration of residents, and the annual number of residential building permits."