ˌvertical exˈpansion BrE AmE noun [uncountable] technical
when a company starts to do or make some of the things that used to be done or made by companies it did business with
ˌvertical exˈpansion BrE AmE noun [uncountable] technical
when a company starts to do or make some of the things that used to be done or made by companies it did business with
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012