migration

noun

mi·​gra·​tion mī-ˈgrā-shən 

: the act, process, or an instance of migrating

watched the migration of the birds overhead

migrational

mī-ˈgrā-sh(ə-)nəl 

adjective

Examples of migration in a Sentence

Recent Examples on the Web

Unauthorized migration has been a problem for some years but has risen to the top of the political agenda in recent months. —CNN Money, 28 Sep. 2025

While Colorado had the highest migration rate overall, the type of millennials moving to the state also stood out in the study. —Center Square, The Washington Examiner, 27 Sep. 2025

In the weeks before migration, many species gather at communal roosts. —Brandi D. Addison, Nashville Tennessean, 26 Sep. 2025

At stake, the report says, are migration corridors for elk, mule deer and Canada lynx, forests that remove carbon from the atmosphere, clean water, clean air and outdoor spaces that attract visitors to the benefit of the state’s economy. —John Meyer, Denver Post, 26 Sep. 2025

Word History

Etymology

French or Latin; French, from Latin migration-, migratio, from migratus (past participle of migrare to migrate) + -ion-, -io -ion — more at migrate

First Known Use

circa 1527, in the meaning defined above

Phrases Containing migration

• pre-migration

Rhymes for migration

• ablation
• bination
• carnation
• cassation
• castration
• causation
• centration
• cessation
• cetacean
• chelation
• citation
• collation

Kids Definition

migration

noun

mi·​gra·​tion

mī-ˈgrā-shən

1

: the act or an instance of migrating

2

: a group of individuals that are migrating

Medical Definition

migration

noun

mi·​gra·​tion mī-ˈgrā-shən 

: the act, process, or an instance of migrating

migration of larval nematodes to the lungs