- a series of persons relieving one another or taking turns; shift.
- a fresh set of dogs or horses posted in readiness for use in a hunt, on a journey, etc.
- relay race.
- a length or leg in a relay race.
- Machinery. an automatic control device in which the settings of valves, switches, etc., are regulated by a powered element, as a motor, solenoid, or pneumatic mechanism actuated by a smaller, sensitive element.
- Electricity. a device, usually consisting of an electromagnet and an armature, by which a change of current or voltage in one circuit is used to make or break a connection in another circuit or to affect the operation of other devices in the same or another circuit.
- (initial capital letter) U.S. Aerospace. one of an early series of experimental low-altitude, active communications satellites.
- to carry forward by or as if by relays: to relay a message.
- to provide with or replace by fresh relays.
- Electricity. to retransmit (a signal, message, etc.) by or as if by means of a telegraphic relay.
- Electricity. to retransmit a signal or message electronically.
Origin of relay1
- to lay again.
Origin of re-lay
Examples from the Web for relay
When asked how she feels about paving the way for abortion education on the Internet, Steinauer was quick to relay her enthusiasm.The Internet’s First Abortion Class
October 6, 2014
Pippa and and her brother are part of a team of eight cyclists, and will be riding three hours a day each in relay.Pippa's Cross America Cycle Race
June 16, 2014
Teams generally race in a relay format with one racer always on the road.Pippa Middleton To Cycle Across America ... Starting Tomorrow
June 13, 2014
Relay: Teams of four compete in a four-part race, 4x7.5km (30km total) for men and 4x6km (24km total) for women.Why the Biathlon Makes Bonds of Us All
February 16, 2014
They also make phone calls and relay data to third-party fitness apps such as MapMyRun.These Are the Best Fitness Gadgets at CES
January 13, 2014
At the end of ten miles or so a relay mount was waiting for each rider.When the West Was Young
Frederick R. Bechdolt
A relay snapped, and instantly the ammeter jumped to read 4500 amperes.Islands of Space
John W Campbell
Behind him a row of other exhorters sat, a relay ready to leap to his aid.Other Main-Travelled Roads
Don Mathers adjusted the screen to relay the Kraden cruiser.Medal of Honor
Dallas McCord Reynolds
It was during a relay that Porthos ventured to interrogate Aramis discreetly.The Man in the Iron Mask
Alexandre Dumas, Pere
- a person or team of people relieving others, as on a shift
- a fresh team of horses, dogs, etc, posted at intervals along a route to relieve others
- the act of relaying or process of being relayed
- short for relay race
- one of the sections of a relay race
- an automatic device that controls the setting of a valve, switch, etc, by means of an electric motor, solenoid, or pneumatic mechanism
- electronics an electrical device in which a small change in current or voltage controls the switching on or off of circuits or other devices
- a combination of a receiver and transmitter designed to receive radio signals and retransmit them, in order to extend their range
- (as modifier)a relay station
- to carry or spread (something, such as news or information) by relays
- to supply or replace with relays
- to retransmit (a signal) by means of a relay
- British to broadcast (a performance) by sending out signals through a transmitting stationthis concert is being relayed from the Albert Hall
Word Origin and History for relay
late 14c., "hounds placed along a line of chase," from Middle French relai "reserve pack of hounds or other animals" (13c.), from Old French relaier "to exchange tired animals for fresh," literally "leave behind," from re- "back" (see re-) + laier "to leave" (see delay (v.)). The etymological sense is "to leave (dogs) behind (in order to take fresh ones)." Of horses, 1650s. Electromagnetic sense first recorded 1860. As a type of foot-race, it is attested from 1898.
c.1400, "to set a pack of (fresh) hounds after a quarry;" also "change horses," from Old French relaiier, from relai (see relay (n.)). Related: Relayed; relaying.
- An electrical switch that is operated by an electromagnet, such as a solenoid. When a small current passes through the electromagnet's coiled wire, it produces a magnetic field that attracts a movable iron bar, causing it to pivot and open or close the switch.