An alien who has been granted the right by U.S. Citizenship and Immigration Services to reside permanently in the United States and to work without restrictions in the United States. Also known as a lawful permanent resident.

102 Internal Revenue Service. (2016). Immigration terms and definitions involving aliens: immigrant. Retrieved from https://www.irs.gov/Individuals/International-Taxpayers/Immigration-Terms-and-Definitions-Involving-Aliens.