Meaning & use
pumice
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A light, porous volcanic rock, often used as an abrasive for smoothing or cleaning skin.
See it in a sentence
She used a pumice stone to smooth the rough skin on her heels.
The volcanic eruption scattered pumice across the surrounding hillsides.
A note on using this word
Pumice is so full of trapped gas bubbles that it's light enough to float on water, which is unusual for a rock.
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