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

Stone washing requires pumice stones, frictional abrasion and industrial washing machines to beat up and break down denim to a more desirable soft and vintage effect. — Angela Velasquez, Footwear News, 31 July 2026

Scientists will also be able to use satellite observations of the pumice rafts to hone estimates of the size of the eruption. — Meghan Bartels, Scientific American, 31 July 2026

Tips For Proper Watering Plant succulents in fast-draining soil that’s sandy, such as a cactus mix that contains pumice or perlite. — Karen Brewer Grossman, Southern Living, 19 July 2026

Formed from volcanic pumice sculpted by the wind and sea, Sarakiniko’s lunar-like appearance, contrasting with cobalt waters, is surreal. — Helen Iatrou, Travel + Leisure, 11 July 2026

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