Agent
A'GENT, adjective Acting; opposed to patient, or sustaining action; as, the body agent [Little Used.]
A'GENT, noun
1. An actor; one that exerts power, or has the power to act; as, a moral agent
2. An active power or cause; that which has the power to produce an effect; as, heat is a powerful agent
3. A substitute, deputy, or factor; one entrusted with the business of another; and attorney; a minister.