mill ‧ wheel /ˈmɪlwiːl/ BrE AmE noun [countable] especially British English
a large wheel that is turned by water flowing past it to provide power to the machinery in a ↑ watermill
mill ‧ wheel /ˈmɪlwiːl/ BrE AmE noun [countable] especially British English
a large wheel that is turned by water flowing past it to provide power to the machinery in a ↑ watermill
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012