1. The act of linking together or forming couples.
2. The act of uniting sexually.
3. A device that links or connects.
4. Electronics. Transfer of energy from one circuit to another.
5. The body part of a four-footed animal that connects the hindquarters to the forequarters.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.