1670s, from Latin migrantem (nominative migrans), present participle of migrare "to remove, depart, to move from one place to another" (see migration).
migrant (n.)
"person who migrates," 1760, from migrant (adj.).
例文
1. The government revoked her husband 's license to operate migrant labor crews.
政府は、夫が出稼ぎ労働者の外来者を管理する許可証を取り消した。
2. Migrant workers move from country to country in search of work.
流動労働者は仕事を探すために、ある国から別の国に移動した。
3. Migrant workers are vulnerable to exploitation.
流動労働者は搾取されやすい。
4.The area was an important resting place for many types of migrant birds.