coupler
/ˈkʌp(ə)lə/ noun C2- Anything that serves to couple things together; but especially a device that couples railway carriages.
- A device that connects two keyboards of an organ together so that they play together.
- A device used to convert electronic information into audible sound signals for transmission over telephone lines.
- An electrical device used to transfer energy from one electric device to another, especially without a physical connection.
Plural couplers
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