ˌplate tecˈtonics BrE AmE noun [uncountable] technical
the study of the forming and movement of the large sheets of rock that form the surface of the Earth
ˌplate tecˈtonics BrE AmE noun [uncountable] technical
the study of the forming and movement of the large sheets of rock that form the surface of the Earth
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012