Meaning of pumice

pum•ice

Pronunciation: (pum'is), [key]
— n., v., -iced, -ic•ing.
—n.
  1. Also calleda porous or spongy form of volcanic glass, used as an abrasive.
—v.t.
  1. to rub, smooth, clean, etc., with pumice.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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