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.