| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024cho•line (kō′lēn, kol′ēn),USA pronunciation n. - Biochemistry, Nutritiona quaternary ammonium cation, C5H14N⁺O, one of the B-complex vitamins, found in the lecithin of many plants and animals.
- choline hydroxide, C5H15NO2, the viscous, strongly alkaline commercial form of this compound, usually synthesized, used as a feed supplement, esp. for poultry, and in medicine in certain liver conditions.
- Biochemistrycholine chloride, C5H14ClNO.
Collins Concise English Dictionary © HarperCollins Publishers:: choline /ˈkəʊliːn -ɪn ˈkɒl-/ n - a colourless viscous soluble alkaline substance present in animal tissues, esp as a constituent of lecithin: used as a supplement to the diet of poultry and in medicine for preventing the accumulation of fat in the liver. Formula:[(CH3)3NCH2CH2OH]+OH–
Etymology: 19th Century: from chole- + -ine², so called because of its action in the liver |