Coupler

noun

Definitions

Noun
  1. 1
    Someone who couples things together, especially someone whose job it is to couple railway carriages. archaic
  2. 2
    a mechanical device that serves to connect the ends of adjacent objects wordnet
  3. 3
    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."

  4. 4
    A device that connects two keyboards of an organ together so that they play together.
  5. 5
    A device used to convert electronic information into audible sound signals for transmission over telephone lines.
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  1. 6
    An electrical device used to transfer energy from one electric device to another, especially without a physical connection.

Etymology

From couple + -er.

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