硫りゅう化か水すい銀ぎんMeaningsNoun1. mercury sulfide (esp. mercuric sulfide, HgS, but also mercurous sulfide, Hg2S) (sulphide)Kanji used硫sulphur化transformation水water銀silverPitch accentりゅうかすいぎんComposed of硫りゅう化かsulfuration; sulphurationNoun水すい銀ぎんmercury (Hg)Noun