Emily Dickinson Lexicon

QUER'CIT-RON, n. [L. quercus, an oak, and citrina, lemon-colored, a name imposed by Dr. Edward Bancroft.]

1. The Quercus tinctoria, black oak, or dyer's oak, which grows from Canada to Georgia, and west to the Mississippi. It frequently attains the height of 70 or 80 feet, and is one of the largest trees of the American forest.
2. The bark of Quercus tinctoria, a valuable article in dyeing and calico printing, first brought before the public by Dr. Bancroft. Although this oak affords a yellow color yet it is not the yellow oak, that name being commonly applied to Quercus Castanea.