pierre ponce
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French[edit]
Pronunciation[edit]
Noun[edit]
pierre ponce f (usually uncountable, plural pierres ponces)
- pumice (light, porous type of pyroclastic igneous rock, formed during explosive volcanic eruptions when liquid lava is ejected into water or air as a froth containing masses of gas bubbles, which are frozen into the rock as the lava solidifies)
- Synonym: ponce