| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024pu•rine (pyŏŏr′ēn, -in),USA pronunciation n. [Chem., Biochem.]- Biochemistry, Chemistrya white, crystalline compound, C5H4N4, from which is derived a group of compounds including uric acid, xanthine, and caffeine.
- Biochemistry, Chemistryone of several purine derivatives, esp. the bases adenine and guanine, which are fundamental constituents of nucleic acids.
- German Purin. See pure, uric, -ine2
- 1895–1900
Collins Concise English Dictionary © HarperCollins Publishers:: purine /ˈpjʊəriːn/, purin /ˈpjʊərɪn/ n - a colourless crystalline solid that can be prepared from uric acid. Formula: C5H4N4
- Also called: purine base any of a number of nitrogenous bases, such as guanine and adenine, that are derivatives of purine and constituents of nucleic acids and certain coenzymes
Etymology: 19th Century: from German Purin; see pure, uric, -ine² |