orpiment
plural of Grecian laurel
(archaic) It seems to me.
plural of scolecite
arsenic trisulphide, occurring naturally in crystals or massive deposits, formerly used as a dye or pigment
その画家は鮮やかな黄色を出すためにヒ素三硫化物を絵の具に混ぜたが、その顔料に伴う健康リスクに気づいていなかった。
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