Chay root

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Chay´ root`

1.The root of the Oldenlandia umbellata, native in India, which yieds a durable red dyestuff.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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Hummel, "The Colouring and Other Principles Contained in Chay Root", Journal of Chemical Society, LXXXVIII, 63, 1893, p.
(23.) Experiments in extracting the dye from the chay root and fixing the extracted dye onto cotton cloth were carried out by L.