in ‧ ter ‧ re ‧ la ‧ tionship /ˌɪntərɪˈleɪʃ ə nʃɪp/ BrE AmE ( also in‧ter‧re‧la‧tion /-rɪˈleɪʃ ə n/) noun [uncountable and countable]
a connection between two things that makes them affect each other
in ‧ ter ‧ re ‧ la ‧ tionship /ˌɪntərɪˈleɪʃ ə nʃɪp/ BrE AmE ( also in‧ter‧re‧la‧tion /-rɪˈleɪʃ ə n/) noun [uncountable and countable]
a connection between two things that makes them affect each other
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012