gra ‧ da ‧ tion /ɡrəˈdeɪʃ ə n/ BrE AmE noun [countable]
formal a small change or difference between points on a scale:
There are many gradations of colour between light and dark blue.
gra ‧ da ‧ tion /ɡrəˈdeɪʃ ə n/ BrE AmE noun [countable]
formal a small change or difference between points on a scale:
There are many gradations of colour between light and dark blue.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012