Word forms: 3rd person singular presenttense flosses, present participle flossing, past tense, past participle flossed1. uncountable nounYou can use floss to refer to fine soft threads of some kind.
Craft Resources also sells yarn and embroidery floss.
2. See also candyfloss, dental floss
3. verbWhen you floss, you use a special kind of strong string to clean between your teeth and gums.
Brush your teeth after each meal and floss daily. [VERB]
She was flossing her teeth at the time. [VERB noun]