pumice

/ˈpʌmɪs/
noun
  1. A light, porous volcanic rock that is rough and used for cleaning or smoothing surfaces.
    • Ancient Romans used pumice to smooth the pages of papyrus scrolls.
    • The gardener mixed pumice into the soil to improve drainage.
    • She used a piece of pumice to scrub the dead skin off her feet.
verb
  1. To clean, smooth, or polish something using pumice.
    • He pumiced the rough edges of the wooden table until they were smooth.
    • The artist pumiced the stone surface to prepare it for carving.
    • I need to pumice my calluses before they get too thick.
What does "pumice" mean? | whatsthatwordmean | whatsthatwordmean