Definitions
1.nounAn instance of moving to live in another place for a while.
2.nounSeasonal moving of animals, as mammals, birds or fish, especially between breeding and non-breeding areas.
3.nounMovement in general."The migration of lead from a can to the food inside it can cause lead poisoning."
4.nounInstance of changing a platform from an environment to another one.
5.nounThe movement of cells in particular directions to specific locations.