ferroceriumWiktionary 原文/ˌfɛroʊˈsɪəriəm/构词拆解ferroferro-前缀ceriumcerium词干ferro-(chemistry) ferrous:词源说明From ferro- + cerium.释义名词noun1A pyrophoric alloy of iron and cerium that is used with a striker (a steel) to make the spark of a lighter or firestarter.