- (also dental floss)
a type of very thin string that is used for cleaning between the teeth 牙线: 一种非常细的线,用于清洁牙齿之间 thin silk thread see also candyfloss丝线
Word Originmid 18th cent.: from French (soie) floche ‘floss (silk)’, from Old French flosche ‘down, nap of velvet’, of unknown origin.