administered

Administered is the past tense and past participle of the verb administer. It can describe something that has been managed, distributed, or carried out by an authority or person. As a participle, it often functions as an adjective, as in administered doses or administered programs. The term derives from Latin administrare, from ad- “to” and ministrare “to serve or manage.” The related noun administration refers to the act, process, or system of managing or supervising.

In medicine, to administer a drug means to give it to a patient, including the dose and route of delivery (for example, oral or intravenous). In government and law, to administer a state, program, or procedure means to oversee its operations or enforcement. The phrase adminstration also appears in contexts such as the administration of estates, where a person is appointed to manage a deceased person’s property under probate law.

In legal and administrative settings, administered can occur with a prepositional phrase such as administered by or administered to. For example, a test or procedure can be administered by a nurse or administrator, or administered to a participant. The passive voice is common in formal writing: the vaccine was administered; the exam was administered by a supervisor.

Usage notes: administered and administration are closely related but have distinct roles as participle/adjective and noun forms, respectively. The word is neutral and widely used across medicine, law, government, and social services.