单词	pseudopurpurin
释义	pseudopurpurin noun pseu·​do·​purpurin "+ : 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 Word History Etymology International Scientific Vocabulary pseud- + purpurin
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