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pumicite
Definitions
[], (Noun)
Definitions:
- A volcanic ash with a composition similar to pumice but deposited as powder or granules, widely used in the manufacture of lightweight concrete and for its abrasive properties; unconsolidated volcanic ash.
Phrases:
Origin
:
early 20th century. From pumice + -ite. Perhaps compare French pumicite pumice
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definition by Oxford Dictionaries