flu ‧ o ‧ ride /ˈflʊəraɪd $ -ˈflʊr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: fluorine ]
a chemical which is believed to help protect teeth against decay
flu ‧ o ‧ ride /ˈflʊəraɪd $ -ˈflʊr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: fluorine ]
a chemical which is believed to help protect teeth against decay
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012