a written essay, treatise, or thesis, especially one written by a candidate for the degree of Doctor of Philosophy. 2. any formal discourse in speech or writing.
Definition of 'relay'. relay. Word forms: plural , 3rd person singular present tense relays, present participle relaying , past tense , past participle relayed pronunciation note: The noun is pronounced (riËleÉª ). The verb is pronounced (rÉªleÉª ). A relay or a relay race is a race between two or more teams, for example teams of runners or swimmers. Each member of the team runs or swims one section of the race. Britain's prospects of beating the United States in the relay looked poor.
Automotive-style miniature relay, dust cover is taken off. A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal.