noun
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the act or an instance of migrating
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a group of people, birds, etc, migrating in a body
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chem a movement of atoms, ions, or molecules, such as the motion of ions in solution under the influence of electric fields
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The seasonal movement of a complete population of animals from one area to another. Migration is usually a response to changes in temperature, food supply, or the amount of daylight, and is often undertaken for the purpose of breeding. Mammals, insects, fish, and birds all migrate. The precise mechanism of navigation during migration is not fully understood, although for birds it is believed that sharp eyesight, sensibility to the Earth's magnetic field, and the positions of the Sun and other stars may play a role.
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The movement of one atom or more, or of a double bond, from one position to another within a molecule.
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The movement of ions between electrodes during electrolysis.
Other Word Forms
- migrational adjective
- nonmigration noun
- premigration adjective
- remigration noun
Etymology
Origin of migration
First recorded in 1605–15, migration is from the Latin word migrātīon- (stem of migrātiō ). See migrate, -ion
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In some instances, rapid growth was fueled by supply crunches and migration trends.
From Barron's
Researchers suggest this may reflect historical Irish migration, as more than 20 percent of Liverpool's population was Irish in the 1850s.
From Science Daily
"Those who can leave legally do so. Those who can't are pushed into irregular migration, even if the journey carries extreme risks," he told AFP.
From Barron's
For instance, home sales are trending higher in markets that are adding local jobs and continue to see domestic migration.
From Barron's
The goal, he said, is to "dramatically grow" Venezuelan oil production, improve the lives of Venezuelans, and reduce the "criminal and migration and kidnapping" threats on the United States.
From Barron's
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
