释义 |
pseu·do·purpurin \“+\ noun Etymology: International Scientific Vocabulary pseud- + 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 |