quercitron
n.
[植]美洲黑櫟；美洲黑櫟內樹皮；櫟皮粉
英語翻譯 Noun:
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a yellow dye made from the bark of the quercitron oak tree
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medium to large deciduous timber tree of the eastern United States and southeastern Canada having dark outer bark and yellow inner bark used for tanning; broad five-lobed leaves are bristle-tipped
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