1
a
: soft thread of silk or mercerized cotton for embroidery
b
2
: fluffy fibrous material
flossed; flossing; flosses
: to use dental floss on
: to use dental floss
Examples of floss in a Sentence
Noun
used cotton floss to simulate Santa's beard
Verb
My dentist told me I should floss more often.
Recent Examples on the Web
Sherri Gordon, Health, 5 May 2025
The same is true for floss, which is often made of or coated with plastic.
—Kaitlin Sullivan, Health, 20 Feb. 2025
Michael Franco
may 15, New Atlas, 15 May 2025
Good reasons to floss As mentioned, flossing removes food, plaque, and bacteria from between the teeth, as well as from along and beneath the gum line.
—Violeta Valdés, Vogue, 28 Apr. 2025
See All Example Sentences for floss
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Noun
Avoid jerking the floss or aggressive movements; instead, use smooth, gentle motions.
—Sherri Gordon, Health, 5 May 2025
The same is true for floss, which is often made of or coated with plastic.
—Kaitlin Sullivan, Health, 20 Feb. 2025
Verb
When users floss, the thread channels saliva to a small electrochemical sensor embedded in the tool's handle.
—Michael Franco
may 15, New Atlas, 15 May 2025
Good reasons to floss As mentioned, flossing removes food, plaque, and bacteria from between the teeth, as well as from along and beneath the gum line.
—Violeta Valdés, Vogue, 28 Apr. 2025
See All Example Sentences for floss
Cite this Entry
“Floss.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/floss. Accessed 5 Jun. 2025.
Copy CitationKids Definition
floss
1 of 2 noun
ˈfläs 
ˈflȯs
1
a
: soft silk or cotton thread used for embroidery
b
2
: fluffy material full of fibers
floss
2 of 2 verb
: to use dental floss on (one's teeth)
Medical Definition
floss
1 of 2 nounfloss
2 of 2 transitive verb
: to use dental floss on (one's teeth)
the correct way to floss your teeth
: to use dental floss
flosses daily
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