transcription, транскрипция: [ ˌpī-rō-ˈlü-ˌsīt ]
noun
Etymology: German Pyrolusit, from Greek pyr- + lousis washing, from louein to wash — more at lye
Date: 1828
: a soft black or steel-gray mineral of metallic luster consisting of manganese dioxide that is the most important ore of manganese