quer·cit·ron /ˈkwɝˌsɪtrən, ˌkwɚ/



 Quer·cit·ron n.
 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.

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 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]