Meaning of COUPLING in English

COUPLING

coup ‧ ling /ˈkʌplɪŋ/ BrE AmE noun [countable]

[ Word Family: noun : ↑ couple , ↑ coupling ; verb : ↑ couple ]

1 . something that connects two things together, especially two vehicles

2 . when two things are joined or connected SYN combination :

an attractive coupling of two Slavonic Dances

3 . formal an act of having sex

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.