Definition of "migration" []

• The act or an instance of migrating. (noun)
• A group migrating together. (noun)
• Chemistry & Physics The movement of one atom or more from one position to another within a molecule. (noun)
• Chemistry & Physics The movement of ions between electrodes during electrolysis. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Hence the descriptive phrase "migration or importation of persons"; the term migration allowing those who were scrupulous of acknowledging expressly a property in human beings, to view"
• "One peculiar aspect of the migration is the change that occurs in the biological processes."
• "And there was this process of what they called migration, moving from Guantanamo, to Iraq, to Abu Ghraib."