Definition of "agent" []

• One that acts or has the power or authority to act. (noun)
• One empowered to act for or represent another: an author's agent; an insurance agent. (noun)
• A means by which something is done or caused; instrument. (noun)
• A force or substance that causes a change: a chemical agent; an infectious agent. (noun)
• A representative or official of a government or administrative department of a government: an FBI agent. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "An individual human agent is simply the repository of the roles and values of the institutions in which the ˜agent™ lives his or her life."
• "As no _action_ can be produced without some agent or moving cause, it follows, that every active verb must have some _actor_ or _agent_."
• "AxAgent agent, string characterLocation) {_agent = agent; _agent."