エージェント - フリー辞書によるエージェントの定義

Agent - definition of agent by The Free Dictionary Agent - definition of agent by The Free Dictionary https://www.thefreedictionary.com/agent Printer Friendly agent Also found in: Thesaurus , Medical , Legal , Financial , Acronyms , Idioms , Encyclopedia , Wikipedia . Related to agent: Agent Orange , agent provocateur a·gent (ā′jənt) n. 1. One that acts or has the power or authority to act. 2. One empowered to act for or represent another: an author's agent; an insurance agent. 3. A means by which something is done or caused; an instrument. 4. A force or substance that causes a change: a chemical agent; an infectious agent. 5. A representative or official of a government or administrative department of a government: an FBI agent. 6. A spy. 7. Linguistics The argument that expresses the means or cause of an action or event described by a phrase or clause. The noun John is the agent in the clause John threw the ball. v. a·gent·ed , a·gent·ing , a·gents v. tr. To act as an agent or representative for: Who will agent your next book? v. intr. To act as an agent or representative. [Middle English, from Latin agēns , agent- , present participle of agere , to do ; see ag- in Indo-European roots .] American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. agent ( ˈeɪdʒənt ) n 1. a person who acts on behalf of another person, group, business, government, etc; representative 2. a person or thing that acts or has the power to act 3. a phenomenon, substance, or organism that exerts some force or effect: a chemical agent . 4. the means by which something occurs or is achieved; instrument: wind is an agent of plant pollination . 5. (Commerce) a person representing a business concern, esp a travelling salesman 6. (Professions) Brit short for estate agent 7. (Military) short for secret agent [C15: from Latin agent-, noun use of the present participle of agere to do] agential adj Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 a•gent (ˈeɪ dʒənt) n. 1. a person or business authorized to act on another's behalf. 2. a person or thing that acts or has the power to act. 3. a natural force or object producing or used for obtaining specific results: Many insects are agents of fertilization. 4. an active cause; an efficient cause. 5. a person who works for or manages an agency. 6. a person who acts in an official capacity for a government agency, as a law-enforcement officer or a spy: an FBI agent. 7. a linguistic form or construction, usu. a noun or noun phrase, denoting an animate being that performs or causes the action expressed by the verb, as the police in The car was found by the police. 8. a representative of a business firm, esp. a traveling salesperson. 9. a substance that causes a chemical reaction. Compare reagent. 10. a drug or chemical capable of eliciting a biological response. 11. an organism that is a cause or vector of disease. v.t. 12. to represent (a person or thing); act as an agent on: to agent a manuscript; Who agented that deal? [1570–80; < Latin agent-, s. of agēns, present participle of agere to drive, do, act ] Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved. a·gent (ā′jənt) A substance that can cause a chemical reaction or a biological effect. Compare reagent . The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. agent In intelligence usage, one who is authorized or instructed to obtain or to assist in obtaining information for intelligence or counterintelligence purposes. Dictionary of Military and Associated Terms. US Department of Defense 2005. Thesaurus Antonyms Related Words Synonyms Legend: Switch to new thesaurus Noun 1. agent - an active and efficient cause; capable of producing a certain effect; "their research uncovered new disease agents" causal agency , causal agent , cause - any entity that produces an effect or is responsible for events or results 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 biological agent , biohazard - any bacterium or virus or toxin that could be used in biological warfare eliminator - an agent that eliminates something impairer - an agent that impairs; "crops can be great impairers of the soil" infectious agent , infective agent - an agent capable of producing infection lethal agent - an agent capable of causing death motor - a nonspecific agent that imparts motion; "happiness is the aim of all men and the motor of all action" mutagen - any agent (physical or environmental) that can induce a genetic mutation or can increase the rate of mutation enlivener , invigorator , quickener - an agent that gives or restores life or vigor; "the soul is the quickener of the body" relaxer - any agent that produces relaxation; "music is a good relaxer" represser , repressor - an agent that represses retardant , retardent , retardation - any agent that retards or delays or hinders; "flame-retardant" satisfier - any agent capable of producing satisfaction shortener - any agent that shortens; "alcohol is a great shortener of life" stressor - any agent that causes stress to an organism teratogen - any agent that interferes with normal embryonic development: alcohol or thalidomide or X-rays or rubella are examples transmitter , vector - any agent (person or animal or microorganism) that carries and transmits a disease; "mosquitos are vectors of malaria and yellow fever"; "fleas are vectors of the plague"; "aphids are transmitters of plant diseases"; "when medical scientists talk about vectors they are usually talking about insects" weakener - that which weakens or causes a loss of strength; "doubt is a great weakener of resolve" 2. agent - a representative who acts on behalf of other persons or organizations business agent - an agent who handles business affairs for another; especially one who deals with employers literary agent - an agent who represents an author in dealings with publishers bailee - the agent to whom property involved in a bailment is delivered booker , booking agent - someone who engages a person or company for performances surrogate , deputy - a person appointed to represent or act on behalf of others employment agent - someone who runs an employment agency freight agent - an employee of a freight carrier who directs the receipt and delivery of goods government agent - a representative or official of a government or administrative department of a government handler - an agent who handles something or someone; "the senator's campaign handlers" mill agent - the responsible official at a mill that is under absentee ownership next friend - (law) a person who acts on behalf of an infant or disabled person parliamentary agent - a person who is employed to look after the affairs of businesses that are affected by legislation of the British Parliament placeholder , procurator , proxy - a person authorized to act for another purchasing agent - an agent who purchases goods or services for another representative - a person who represents others intelligence agent , intelligence officer , operative , secret agent - a person secretly employed in espionage for a government shipping agent - the agent of a shipowner shopper - a commercial agent who shops at the competitor's store in order to compare their prices and merchandise with those of the store that employs her special agent - someone whose authority is limited to the special undertaking they have been instructed to perform talent agent - an agent who represents performers general agent , universal agent - someone authorized to transact every kind of business for the principal 3. agent - a substance that exerts some force or effect causal agency , causal agent , cause - any entity that produces an effect or is responsible for events or results substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man" antiflatulent - any agent that reduces intestinal gas antifungal , antifungal agent , antimycotic , antimycotic agent , fungicide - any agent that destroys or prevents the growth of fungi antimicrobial , antimicrobic , disinfectant , germicide - an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease drug - a substance that is used as a medicine or narcotic vermicide - an agent that kills worms (especially those in the intestines) alkaliser , alkalizer , antacid , antiacid , gastric antacid - an agent that counteracts or neutralizes acidity (especially in the stomach) bacteriostat - a chemical or biological material that inhibits bacterial growth blanching agent , bleaching agent , whitener , bleach - an agent that makes things white or colorless chemical agent - an agent that produces chemical reactions coagulant , coagulator - an agent that produces coagulation 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" diluent , dilutant , thinner - a diluting agent emmenagogue - any agent that promotes menstrual discharge galactagogue - agent that induces milk secretion hypnagogue - an agent that induces drowsiness or sle