ˈepoch-ˌmaking BrE AmE adjective
very important in changing the way people live or the way a society is organized:
the epoch-making social changes of the 1960s
ˈepoch-ˌmaking BrE AmE adjective
very important in changing the way people live or the way a society is organized:
the epoch-making social changes of the 1960s
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012