coupler

名词 n.
/ˈkʌp(ə)lə/   

英文释义

名词 n.
  1. Someone who couples things together, especially someone whose job it is to couple railway carriages. archaic
  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.
  3. 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.

词形变化

couplers plural

词源

Etymology tree
English couple
Proto-Indo-European *-yósder.
Proto-Italic *-āzijos
Latin -āriusnom.
Latin -āriusbor.
Proto-Germanic *-ārijaz
Proto-West Germanic *-ārī
Old English -ere
Middle English -ere
English -er
English coupler
From couple + -er.
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