One who resides in a particular place permanently or for an extended period, as: A diplomatic official residing in a foreign seat of government. A colonial official acting as adviser to the ruler of a protected state, often having quasi-gubernatorial powers. A member of an intelligence-gathering or nonuniformed law enforcement agency who resides and oversees operations in a certain locale: the FBI resident in St. Louis. One who lives in a dormitory. A physician receiving specialized clinical training in a hospital, usually after completing an internship. A nonmigratory bird or other animal. Dwelling in a particular place; residing: resident aliens. Living somewhere in connection with duty or work. Inherently present: resident anxieties. Nonmigratory: resident fauna.