We found one dictionary that defines the word out-migrations:

General (1 matching dictionary)

1. out-migrations: Merriam-Webster

▸ Words similar to out-migrations ▸ Usage examples for out-migrations ▸ Idioms related to out-migrations ▸ Wikipedia articles (New!) ▸ Words that often appear near out-migrations ▸ Rhymes of out-migrations ▸ Invented words related to out-migrations