quercitron
noun
quer·cit·ron
ˈkwər-ˌsi-trən
ˌkwər-ˈsi-
1
: a large timber oak (Quercus velutina) chiefly of the eastern and central U.S.
2
: the bark of the quercitron that is rich in tannin and a dye containing quercetin
also
: the dye
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Merriam-Webster unabridged
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