pumicenoun [ U ]
uk/ˈpʌm.ɪs/usa type of grey, light stone that is used in pieces or as a powder for rubbing things to make them smooth:
Pumice is produced in volcanic eruptions.
Thesaurus: synonyms and related words
Geology: types of rock
- basalt
- basaltic
- bedrock
- bioclastic
- boulder
- carboniferous
- chalk
- clastic
- conglomerate
- cryolite
- flinty
- gneiss
- gypsum
- haematite
- lava
- lodestone
- quartz
- schist
- sedimentary
- slate
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