— migrational , adj.
/muy gray"sheuhn/ , 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. Chem. a movement or change of position of atoms within a molecule.
5. Physics. diffusion (def. 3a).
[ 1605-15; migration- (s. of migratio ). See MIGRATE, -ION ]