单词 | penta-compound |
释义 | > as lemmaspenta-compound penta-compound n. Brit. /ˈpɛntəˌkɒmpaʊnd/ , U.S. /ˈpɛn(t)əˌkɑmpaʊnd/ Chemistry rare an organic compound whose molecule contains five carbon atoms, or five groups of a particular kind.ΚΠ 1866 W. Odling Lect. Animal Chem. iv. 66 Of tri-, tetra-, and penta-compounds, including glycerine, the lactic, butyric..and valeric acids. 1935 Jrnl. Amer. Chem. Soc. 57 2325/2 The identity of the penta compound was confirmed by a mixed melting point with the ester prepared by the action of ethereal diazomethane on a sample of Eastman benzenepentacarboxylic acid. < as lemmas |
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