coupling

Noun

• 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
    

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

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

Related words

• Synonyms: 
  mating , pairing , conjugation , union , sexual union , coupler , yoke