Found 2 items, similar to out-migration.
English → English (WordNet) Definition: out-migration out-migration n : migration from a place (especially migration from your native country in order to settle in another) [syn: emigration, expatriation]
English → English (gcide) Definition: out-migration out-migration \out-migration\ n. migration out of country or territory; emigration. Syn: emigration. [WordNet 1.5]