pumice

noun

pum·​ice ˈpə-məs 

: a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishing

pumiceous

pyü-ˈmi-shəs 

ˌpə-

adjective

Examples of pumice in a Sentence

Recent Examples on the Web

For one, pumice and bamboo offer a gentle, physical exfoliation. —Cierra Black, Essence, 24 June 2025

Sweater stone Often made from pumice or even recycled glass, sweater stones are handheld blocks with an abrasive, sandpaper-like texture. —Christina Pérez, Vogue, 15 Sep. 2024

The pumice stone method not only damages the washing machines during the process, but there is a higher labor cost involved in removing the residue, dust and sludge the stones produce. —Catherine Salfino, Sourcing Journal, 8 May 2025

Here's how to use a pumice stone for tackling hard water stains: Start by soaking the rock in water to soften it up. —Ashlyn Needham, Southern Living, 25 Apr. 2025

Word History

Etymology

Middle English pomis, from Anglo-French pomice, from Latin pumic-, pumex — more at foam

First Known Use

15th century, in the meaning defined above

Rhymes for pumice

• lummis
• squamous
• strumous

Kids Definition

pumice

noun

pum·​ice ˈpəm-əs 

: a very light glass that is formed by the rapid cooling of lava from volcanoes, is full of small holes, and is used especially in powder form for smoothing and polishing

Medical Definition

pumice

noun

pum·​ice ˈpəm-əs 

: a volcanic glass full of cavities and very light in weight used especially in powder form for smoothing and polishing