QUERCITRON
quercitron
(noun) a yellow dye made from the bark of the quercitron oak tree
Source: WordNet® 3.1
Noun
quercitron (countable and uncountable, plural quercitrons)
A yellow dye obtained from the bark of the black oak.
The black oak tree, Quercus velutina, indigenous to North America.
Source: Wiktionary
Quer"cit*ron, n. Etym: [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.
Source: Webster’s Unabridged Dictionary 1913 Edition