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单词 roccellin
释义 rocˈcellin Chem.
Also -ine.
[f. as prec. + -in1, -ine5.]
A coal-tar colour used in dyeing, derived from the orchil lichen.
1852Gregory Org. Chem. (ed. 3) 307 Rocelline..is neutral, yields no red colour with bleaching liquor.
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