A 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. As the lava solidifies, the bubbles are frozen into the rock.

(transitive) To abrade or roughen with pumice.

simple past tense and past participle of pumice

Third-person singular simple present indicative form of pumice

Of or pertaining to pumice; resembling pumice.

One who pumices.

plural of pumicer

present participle of pumice

present participle of pumicate

(transitive) To make smooth with pumice.