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单词 orcein
释义 or·ce·in
\ˈȯ(r)sēə̇n\ noun
(-s)
Etymology: French orcéine, from orcine orcin + -éine -ein
: a purple nitrogenous dye that is the essential coloring matter of cudbear and archil and is obtained from orcinol by action of aqueous ammonia and atmospheric oxygen
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