• Pumice

    Pronunciation

    • IPA: /ˈpʌmɪs/

    Origin

    From Latin pūmex ("pumice stone").

    Noun

    pumice

    (uncountable)
    1. A light, porous type of pyroclastic igneous rock, formed during explosive volcanic eruptions when liquid lava is ejected into the air as a froth containing masses of gas bubbles. As the lava solidifies, the bubbles are frozen into the rock.
      • 1912, Katherine Mansfield, The Woman at the Store, Oxford World's Classics 2002, page 10The wind blew close to the ground - it rooted among the tussock grass - slithered along the road, so that the white pumice dust swirled in our faces - settled and sifted over us and was like a dry-skin itching for growth on our bodies.

    Full definition of pumice

    Verb

    1. (transitive) To abrade or roughen with pumice.
    © Wiktionary