We found 11 dictionaries that define the word out-migration:

General (9 matching dictionaries)

1. out-migration: Merriam-Webster
2. out-migration: Vocabulary.com
3. out-migration: Wordnik
4. out-migration: Dictionary.com
5. Out-migration: Wikipedia, the Free Encyclopedia
6. out-migration: Rhymezone
7. out-migration: FreeDictionary.org
8. out-migration: Mnemonic Dictionary
9. out-migration: TheFreeDictionary.com

Computing (1 matching dictionary)

10. out-migration: Encyclopedia

Miscellaneous (1 matching dictionary)

11. Glossary of Population Terms (No longer online)

(Note: See out-migrate as well.)

Definitions from WordNet (out-migration) ▸ noun:  migration from a place (especially migration from your native country in order to settle in another) Opposite: in-migration, immigration, influx Types: emigration, deportation, expulsion, eviction, more... ▸ Words similar to out-migration ▸ Usage examples for out-migration ▸ Idioms related to out-migration ▸ Wikipedia articles (New!) ▸ Popular adjectives describing out-migration ▸ Words that often appear near out-migration ▸ Rhymes of out-migration ▸ Invented words related to out-migration