1. (

• yoke ,
• coupling ,

) a connection (like a clamp or vise) between two things so they move together ;

2. (

• coupling ,
• coupler

) a mechanical device that serves to connect the ends of adjacent objects ;

3. (

• coupling ,
• mating ,
• pairing ,
• conjugation ,
• union ,
• sexual_union

) the act of pairing a male and female for reproductive purposes; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring" ;