1. (noun)yoke, coupling a connection (like a clamp or vise) between two things so they move together
2. (noun)coupling, coupler a mechanical device that serves to connect the ends of adjacent objects
3. (noun)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"
Definition of 'coupling' 
