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
pumiceousplay \pyü-ˈmi-shəs, ˌpə-\ adjective
Recent Examples of pumice from the Web
Islands of pumice floated on the oceans for months.
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Origin and Etymology of pumice
Middle English pomis, from Anglo-French pomice, from Latin pumic-, pumex — more at foam
First Known Use: 15th century
PUMICE Defined for English Language Learners
Definition of pumice for English Language Learners
: 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 Defined for Kids
Definition of pumice for Students
: a very light porous volcanic glass that is used in powder form for smoothing and polishing
Medical Definition of pumice
: a volcanic glass full of cavities and very light in weight used especially in powder form for smoothing and polishing
Seen and Heard
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