二に酸さん化かケイ素そMeaningsNoun1. silicon dioxide; silicaOther spellings二に酸さん化か珪けい素そUsage share unknownKanji used二two酸acid化transformation素elementaryKanji in other spellings珪siliconPitch accentにさんかけいそComposed of二にtwo; 2Numeric酸さん化かoxidation; oxidizationNounケイ素そsilicon (Si)Noun