quercitron bark

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• quercitron bark — ▪ plant anatomy       inner bark of the black oak, Quercus velutina, which contains a colouring matter used to dye wool bright yellow or orange. At one time this colorant was used with cochineal to produce scarlets of particular brilliance.… …   Universalium

• Quercitron — is a yellow dye obtained from the bark of the Eastern Black Oak ( Quercus velutina ), a fine forest tree indigenous in North America. The name is a shortened form of quercicitron, from Latin quercus , oak, and citron , lemon, and was invented by… …   Wikipedia

• 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… …   The Collaborative International Dictionary of English

• quercitron — [kwʉr′si trən, kwər sit′rən] n. [< ModL quercus < L, oak (see QUERCETIN) + CITRON] 1. the inner part of the bark of a North American black oak (Quercus velutina), containing tannin and used in tanning and dyeing 2. a yellow dye made from… …   English World dictionary

• quercitron — noun 1. a yellow dye made from the bark of the quercitron oak tree • Hypernyms: ↑dye, ↑dyestuff 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… …   Useful english dictionary

• quercitron oak — noun 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 five lobed leaves are bristle tipped • Syn: ↑black oak, ↑yellow oak, ↑quercitron …   Useful english dictionary

• quercitron — 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}. [1913 Webster] …   The Collaborative International Dictionary of English

• quercitron oak — Oak Oak ([=o]k), n. [OE. oke, ok, ak, AS. [=a]c; akin to D. eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.] [1913 Webster] 1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks have alternate leaves, often variously lobed, and… …   The Collaborative International Dictionary of English

• quercitron — noun Etymology: blend of New Latin Quercus and International Scientific Vocabulary citron Date: 1794 1. a large timber oak (Quercus velutina) chiefly of the eastern and central United States 2. the bark of the quercitron that is rich in tannin… …   New Collegiate Dictionary

• quercitron — /kwerr si treuhn/, n. 1. an oak, Quercus velutina, of eastern North America, the inner bark of which yields a yellow dye. 2. the bark itself. 3. the dye obtained from this bark. [1785 95; < L quer(cus) oak + CITRON] * * * …   Universalium

• quercitron — quer•ci•tron [[t]ˈkwɜr sɪ trən[/t]] n. 1) pln an oak, Quercus velutina, of E North America: the inner bark yields a yellow dye 2) pln the bark itself 3) the dye • Etymology: 1785–95; < L quer(cus) oak +citron …   From formal English to slang