Definition of migrants:
(n) :
Traveller or worker who moves from one region or country to another.
(n) :
(informal) A person who leaves one place in order to permanently settle in another.
(n) :
A migratory animal, in particular a migratory bird.
(adj) :
Migratory.
(n) :
Any of various pierid butterflies of the genus Catopsilia. Also called an emigrant.