noun🔗SharePierre ponceA 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."The geologist carefully examined the piece of pumice, noticing its light weight and many tiny holes. "Le géologue a examiné attentivement le morceau de pierre ponce, remarquant sa légèreté et ses nombreux petits trous.geologymaterialsubstancenaturescienceChat with AIVocabulary GamePractice Reading
verb🔗SharePonceTo abrade or roughen with pumice."She used a pumice stone to pumice the calluses on her feet. "Elle a utilisé une pierre ponce pour poncer les callosités sur ses pieds.materialgeologyactionChat with AIVocabulary GamePractice Reading
