coupler
nounUK /ˈkʌp(ə)lə/
Etymology From couple + -er.
1
Archaic Someone who couples things together, especially someone whose job it is to couple railway carriages.
2
Anything that serves to couple things together; but especially a device that couples railway carriages.
- Another example of up-to-date practice is that all locomotives and rolling stock have automatic couplers.1954 October, 'Boscawen', “The Kowloon-Canton Railway of Today”, in Railway Magazine, page 711:
3
Entertainment, Lifestyle, Music A device that connects two keyboards of an organ together so that they play together.
4
A device used to convert electronic information into audible sound signals for transmission over telephone lines.
5
An electrical device used to transfer energy from one electric device to another, especially without a physical connection.
- Derived terms
- acoustic coupler, coupleress, Janney coupler, optocoupler, photocoupler