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quercitron
From The Collaborative International Dictionary of English v.0.48:
Quercitrin \Quer"cit*rin\, n. [Cf. F. quercitrin. See Quercitron.] (Chem.) A glucoside extracted from the bark of the oak (Quercus) as a bitter citron-yellow crystalline substance, used as a pigment and called quercitron. [1913 Webster] .
From The Collaborative International Dictionary of English v.0.48:
Quercitron \Quer"cit*ron\, n. [F. quercitron, the name of the name of tree; L. quercus an oak + citrus the citron tree.] 1. The yellow inner bark of the Quercus tinctoria, the American black oak, yellow oak, dyer's oak, or quercitron oak, a large forest tree growing from Maine to eastern Texas. [1913 Webster] 2. Quercitrin, used as a pigment. See Quercitrin. [1913 Webster]
