migration: Meaning and Definition of

mi•gra•tion

Pronunciation: (mī-grā'shun), [key]
— n.
  1. the process or act of migrating.
  2. a migratory movement: preparations for the migration.
  3. a number or body of persons or animals migrating together.
  4. a movement or change of position of atoms within a molecule.
  5. diffusion (def. 3a).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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