Hypertext Webster Gateway: "quercitron"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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}.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
2. Quercitrin, used as a pigment. See {Quercitrin}.
From WordNet (r) 1.7 (wn)
quercitron
n 1: a yellow dye made from the bark of the quercitron oak tree
2: 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 5-lobed leaves
are bristle-tipped [syn: {black oak}, {yellow oak}, {quercitron
oak}, {Quercus velutina}]
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