from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One that couples, especially a device for coupling two railroad cars.
- n. A device connecting two organ keyboards so that they may be played together.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Someone who couples things together, especially someone whose job it is to couple railway carriages.
- n. Anything that serves to couple things together; but especially a device that couples railway carriages.
- n. A device that connects two keyboards of an organ together so that they play together.
- n. A device used to convert electronic information into audible sound signals for transmission over telephone lines.
- n. An electrical device used to transfer energy from one electric device to another, especially without a physical connection.
from the GNU version of the Collaborative International Dictionary of English
- n. One who couples; that which couples, as a link, ring, or shackle, to connect cars.
from The Century Dictionary and Cyclopedia
- n. One who or that which couples, joins, or unites.
- n. In zoology, a plate which joins one of the swimming-appendages of a crustacean to its fellow on the opposite side of the body.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a mechanical device that serves to connect the ends of adjacent objects
From couple + -er. (Wiktionary)