Quer"cit*ron (?), n. [F. quercitron, the name of the name of tree; L. quercus an oak + citrus the citron tree.]
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.
Quercitrin, used as a pigment. See Quercitrin.
© Webster 1913.