pumicer
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pum·ice
(pŭm′ĭs)n.
A light, porous, glassy lava, used in solid form as an abrasive and in powdered form as a polish and an abrasive.
tr.v. pum·iced, pum·ic·ing, pum·ic·es
To clean, polish, or smooth with pumice.
[Middle English, from Anglo-Norman pomis, from Late Latin pōmex, from Latin pūmex, alteration of spūma, foam.]
pu·mi′ceous (pyo͞o-mĭsh′əs, pə-) adj.
pum′ic·er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
pumicer
(ˈpʌmɪsə)n
a person who polishes something with pumice
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014