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Migration
| Term | Definition |
|---|---|
| Brain drain | Large-scale emigration by talented people |
| Chain migration | Migration of people to a specific location because relatives or members of the same nationality previously migrated there |
| Circulation | Short-term, repetitive , or cyclical movements that recur on a regular basis |
| Counterurbanization | Net migration from urban to rural areas in more developed countries |
| Emigration | Migration from a location |
| Floodplain | The area subject to flooding during a given number of years according to historical trends |
| Forced migration | Permanent movement compelled usually by cultural factors |
| Guest workers | Workers who migrate to the more developed countries of Northern and Western Europe, usually from Southern and Eastern Europe or form North Africa, in search of higher-paying jobs |
| Immigration | Migration to a new location |
| Internal migration | Permanent movement within a particular country |
| International migration | Permanent movement from one country to another |
| Interregional migration | Permanent movement from one region of a country to another |
| Intervening obstacle | An environmental or cultural feature of the landscape that hinders migration |
| Intraregional migration | Permanent movement within one region of a country |
| Migration | Form of relocation diffusion involving a permanent move to a new location |
| Migration transition | Change in the migration pattern in a society that results from industrialization, population growth, and other social and economic changes that also produce the demographic transition |
| Mobility | All types of movement from one location to another |
| Net migration | The difference between the level of immigration and the level of emigration |
| Pull factor | Factor that induces people to move to a new location |
| Push factor | Factor that induces people to leave old residences |
| Quotas | In reference to migration, laws that place maximum limits on the number of people who can immigrate to a country each year |
| Refugees | People who are forced to migrate from their home country and cannot return for fear of persecution because of their race, religion, nationality, membership in a social group, or political opinion |
| Unauthorized immigrants | People who enter a country without proper documents |
| Voluntary migration | Permanent movement undertaken by choice |