DictionaryflossDental thread
noun

floss

FLAHSS/flɑːs/

Thin thread used for cleaning between teeth.

A length of floss extends from the dispenser's spool.

An open dental-floss dispenser with its spool visible and a fine thread drawn through its dispensing notch and metal cutter.
Etymology

A tuft of wool or rough silk narrowed to fine thread, then dental thread.

More examples

  • A length of floss catches between two teeth.
  • She keeps a small container of floss in her washbag.

Forms

floss

Similar words

dental thread
Specifically identifies material used between teeth.
toothpick
A small rigid tool rather than a thread.