礬ばん土どばんどじ字FuriganaAudioMeanings1nounalumina; aluminum oxideTechnical term for aluminum oxide (Al₂O₃), used in chemistry, ceramics, and industrial materials. Cross-referenced with アルミナ, which is the more common modern term.See also: アルミナ礬ばん土どはアルミニウムの原げん料りょうとして重じゅう要ようである。Break this sentence down in the analyzerAlumina is important as a raw material for aluminum.このセラミックは高こう純じゅん度どの礬ばん土どから作つくられている。Break this sentence down in the analyzerThis ceramic is made from high-purity alumina.See all 7 example sentences ›