Definition of "pumice" [pum•ice]

• A light, porous, glassy lava, used in solid form as an abrasive and in powdered form as a polish and an abrasive. (noun)
• To clean, polish, or smooth with pumice. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The name pumice is derived from the Latin word pumex, meaning foam."
• "For a similar style, try Old Navy's cropped cotton twill blazer in pumice."
• "Lava Soap contains a fine grit of pumice, which is death on grease and grime, but tough on the skin."