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relay
re·lay1 • n. / ˈrēˌlā/ 1. a group of people or animals engaged in a task or activity for a fixed period of time and then replaced by a similar group: the wagons were pulled by relays of horses gangs of workers were sent in relays. ∎ [usu. as adj.] a race between teams usually of sprinters or swimmers, each team member in turn covering part of the total distance: a 550-meter relay race. 2. an electrical device, typically incorporating an electromagnet, that is activated by a current or signal in one circuit to open or close another circuit. 3. a device to receive, reinforce, and retransmit a broadcast or program. ∎ a message or program transmitted by such a device: a relay of a performance live from the concert hall. • v. / riˈlā; ˈrēˌlā/ [tr.] receive and pass on (information or a message): she intended to relay everything she had learned. ∎ broadcast (something) by passing signals received from elsewhere through a transmitting station: the speech was relayed live from the White House. |
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"relay." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "relay." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O999-relay.html "relay." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-relay.html |
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relay
relay
1. In networking, a means of passing information between two or more networks, each offering a similar network function but each using a different protocol. In general a relay differs from a gateway or bridge in offering a store-and-forward service rather than a real-time service. As an example, a mail relay may be used to pass mail messages between networks using different mail protocols. See also cell relay, frame relay. The term relay is used in some communities as synonymous with bridge or gateway. These three terms have meanings that vary between different communities at the same time, and within a given community at different times. 2. An electrically controlled switch enabling small signals to control much larger powers than would normally be possible as well as providing isolation between circuits. Various contact arrangements, e.g. normally open, normally closed, change-over and multiple poles, are available, as are bistable versions. |
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JOHN DAINTITH. "relay." A Dictionary of Computing. 2004. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. JOHN DAINTITH. "relay." A Dictionary of Computing. 2004. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O11-relay.html JOHN DAINTITH. "relay." A Dictionary of Computing. 2004. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O11-relay.html |
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relay
relay electromechanical switch operated by a flow of electricity in one circuit and controlling the flow of electricity in another circuit. A relay consists basically of an electromagnet with a soft iron bar, called an armature, held close to it. A movable contact is connected to the armature in such a way that the contact is held in its normal position by a spring. When the electromagnet is energized, it exerts a force on the armature that overcomes the pull of the spring and moves the contact so as to either complete or break a circuit. When the electromagnet is de-energized, the contact returns to its original position. Variations on this mechanism are possible: some relays have multiple contacts; some are encapsulated; some have built-in circuits that delay contact closure after actuation; some, as in early telephone circuits, advance through a series of positions step by step as they are energized and de-energized. |
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"relay." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "relay." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1E1-relay.html "relay." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-relay.html |
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relay
relay set of fresh hounds, etc. posted to take up the chase from others XV; set of fresh horses at a stage XVII; relief gang XIX; (stage of) a relay race XX. — OF. relai (mod. relais), f. relayer (f. RE- + laier, ult. repr. L. laxāre; see LEASE), whence or from the sb. relay vb. †let go (fresh hounds) XV; provide with relays XVIII.
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T. F. HOAD. "relay." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "relay." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O27-relay.html T. F. HOAD. "relay." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-relay.html |
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relay
relay •ballet, Calais, chalet, Hallé, palais, pis aller
•matchplay • parlay
•cor anglais, franglais
•melee, pappardelle, Pelé
•endplay • Nestlé • airplay
•belay, relay
•replay • screenplay • Millais • inlay
•misplay • cantabile • roundelay
•teleplay • pipeclay • byplay • volet
•bobsleigh • foreplay • swordplay
•horseplay • outlay • paso doble
•stroke play • soufflé • bouclé
•gunplay • cabriolet • Rabelais
•underlay • Beaujolais • Charolais
•interplay • overlay • wordplay
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Cite this article
"relay." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "relay." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O233-relay.html "relay." Oxford Dictionary of Rhymes. 2007. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-relay.html |
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