Webster's Revised Unabridged Dictionary · 1913

Migrant

Migrant , adjective

[Latin migrans, present participle of migrare. See Migrate.]

Migratory. — Sir T. Browne

Migrant , noun

1.
A migratory bird, person, or other animal.
2.
A person who changes residence frequently in search of employment, especially farm labor, such as harvesting crops seasonally; also called migrant laborer or migrant worker. Sometimes the migrant worker is not a resident of the country in which the work is performed.