pumice

noun
pum·​ice | \ ˈpə-məs How to pronounce pumice (audio) \

Definition of pumice

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

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Other Words from pumice

pumiceous \ pyü-​ˈmi-​shəs How to pronounce pumiceous (audio) , ˌpə-​ \ adjective

Examples of pumice in a Sentence

Recent Examples on the Web The pumice stone would then be lit with a match, placed under the wood to be burned and allowed to cool before returning it to the pot. oregonlive, "French urn, Pittsburgh lamp could be worth thousands: Today’s Collectibles," 1 Feb. 2020 The findings from the cave also included a number of pumice stones that the Neanderthals likely used as an abrading tool to sharpen other tools. Ashley Strickland, CNN, "Neanderthals combed beaches and went diving for shells to use as tools, study says," 15 Jan. 2020 The Romans shipped 15,000 to 20,000 kilograms of pumice from Italy to build the Caesarea harbors. Ben Guarino, Anchorage Daily News, "This village fought sea-level rise 7,000 years ago. The sea won.," 19 Dec. 2019 An analysis of clam shells and volcanic rocks from an Italian cave shows that Neanderthals collected shells and pumice from beaches. Ashley Strickland, CNN, "Neanderthals combed beaches and went diving for shells to use as tools, study says," 15 Jan. 2020 Visitors to Santorini can taste the story of the volcanoes: basalt, pumice, fir, smoke. Timothy O'grady, Condé Nast Traveler, "For the Real Santorini, Visit During Off-Season," 15 Nov. 2019 The pumice, which is filled with holes and cavities, floats like an iceberg does, with about 90% underwater and 10% underwater, the pair explained. Kara Fox And Jessie Yeung, CNN, "A giant pumice stone floating in the Pacific could help heal Australia's Great Barrier Reef," 25 Aug. 2019 Because Santorini's mineral springs were buried by the last volcanic blast, the only moisture here is the morning dew, held in the soil by pumice. Timothy O'grady, Condé Nast Traveler, "For the Real Santorini, Visit During Off-Season," 15 Nov. 2019 The desert was once a deep glacial valley that was buried by pumice during the eruption of Mount Mazama, a Cascade peak that imploded and left behind Crater Lake. oregonlive, "Oregon man pays damages after driving off-road at Crater Lake," 30 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pumice.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pumice

15th century, in the meaning defined above

History and Etymology for pumice

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

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Time Traveler for pumice

Time Traveler

The first known use of pumice was in the 15th century

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Statistics for pumice

Last Updated

4 Feb 2020

Cite this Entry

“Pumice.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pumice. Accessed 28 Feb. 2020.

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More Definitions for pumice

pumice

noun
How to pronounce pumice (audio)

English Language Learners Definition of pumice

: a gray stone that comes from volcanoes, is full of small holes, has a very light weight, and is used especially for smoothing and polishing things or for softening the skin

pumice

noun
pum·​ice | \ ˈpə-məs How to pronounce pumice (audio) \

Kids Definition of pumice

: a very light porous volcanic glass that is used in powder form for smoothing and polishing

pumice

noun
pum·​ice | \ ˈpəm-əs How to pronounce pumice (audio) \

Medical Definition of pumice

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

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More from Merriam-Webster on pumice

Spanish Central: Translation of pumice

Nglish: Translation of pumice for Spanish Speakers

Britannica.com: Encyclopedia article about pumice

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