ˌnatural ˈscience BrE AmE noun [uncountable and countable]
chemistry, biology, and physics, considered together as subjects for study, or one of these subjects
ˌnatural ˈscience BrE AmE noun [uncountable and countable]
chemistry, biology, and physics, considered together as subjects for study, or one of these subjects
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012