noun pseu·do·purpurin \"+\

Definition of pseudopurpurin

  1. :  a red crystalline compound C14H4O2(OH)3COOH obtained from madder root and also made synthetically that decomposes in boiling water into purpurin and carbon dioxide and whose alumina lake is a fine red pigment; purpurin-carboxylic acid

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Origin and Etymology of pseudopurpurin

International Scientific Vocabulary pseud- + purpurin

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