eˌternal ˈtriangle BrE AmE noun [singular] literary
the difficult situation that occurs when two people have a sexual relationship with the same person
eˌternal ˈtriangle BrE AmE noun [singular] literary
the difficult situation that occurs when two people have a sexual relationship with the same person
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012