coolant a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another; "he added more coolant to the car's radiator"; "the atomic reactor used a gas coolant"; "lathe operators use an emulsion of oil and water as a coolant for the cutting tool"
hypnagogue an agent that induces drowsiness or sleep
hypoglycaemic agent,
hypoglycemic agent any of various agents that decrease the level of glucose in the blood and are used in the treatment of diabetes mellitus
inducer an agent capable of activating specific genes
lactifuge any agent that reduces milk secretion (as given to a woman who is not breast feeding)
pressor,
vasoconstrictive,
vasoconstrictor any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure
agent -
One who exerts power, or has the powertoact; an actor.
agent -
One who acts for, or in the place of, another the principal, by authority from him; one intrusted with the business of another; a substitute; a deputy; a factor.
agent -
An active power or cause; that which has the power to produce an effect; as, a physical, chemical, or medicinal agent; as, heat is a powerful agent.
agent -
In the client-server model, the part of the system that performs information preparation and exchange on behalf of a client or server. Especially in the phrase “intelligent agent” it implies some kind of autonomous process which can communicate with other agents to perform some collective task on behalf of one or more humans.
agent -
The participant of a situation that carries out the action in this situation, e. g. "the boy" in the sentences "The boy kicked the ball" and "The ball was kicked by the boy".
OmegaWiki Dictionary
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agent An active power or cause.
agent A representative who acts on behalf of other persons or organizations.