A track and field discipline where runners take turns in carrying a baton from start to finish. Most common events are 4x100 meter and 4x400 meter competitions.
An electrical actuator that allows a relatively small electrical voltage or current to control a larger voltage or current.
From Middle French relai ("reserve pack of hounds"), from relaier; literally, "to leave behind", from Old French relaier ("to leave behind"), from re- + laier, of uncertain origin.