Relay Meaning and Definition
Relay
Pronunciation
/rɪˈleɪ/
Part of Speech
Noun
Definition
A device or mechanism that performs a particular function by interrupting or switching an electric circuit, often used to control the flow of electricity, pneumatic fluid, or other types of energy.
Examples
- The relay switch controlled the garage door’s opening and closing.
- In automobiles, relays are used to power the headlights, windshield wipers, and other accessories.
Etymology
The word “relay” comes from Old French “relaver”, meaning “to relieve” or “to substitute”, and is derived from Latin “relaxare”, meaning “to relax” or “to relieve”.
Usage Notes
When using “relay” as a verb, it means to hand over a responsibility, message, or task to someone else. In an electrical context, relays are used to control the flow of electricity or pneumatic fluid.
Cultural References
The term “relay” is often used in popular culture to describe events, such as baton relays in sports or relay racing in television shows.
Idiomatic Expressions or Phrases
“Take a relay point” means to pass on a task or responsibility to someone else.
Related Words or Phrases
- Circuit
- Switch
- Controller
Collocations
- Relay switch
- Electronic relay
- Relay timer
Frequency of Use
The word “relay” is commonly used in technical and industrial contexts, but also appears in everyday language as a verb.
Common Misspellings
- Reley
- Relie
- Relayy