| 释义 |
turpethic, a. Chem.|tɜːˈpɛθɪk|
[f. mod.L. turpeth-um turpeth + -ic.]
Of or pertaining to turpeth or turbith; in turpethic acid, C34H60O18, produced by the action of bases on turpethin. So turpethin |ˈtɜːpɪθɪn|, Chem. [see -in1], a brownish-yellow purgative resin, C34H56O16, obtained from turpeth- or turbith-root; turpeˈtholic a., in turpetholic acid, C16H32O4, a derivative of turpethin, crystallizing in a mass of slender microscopic needles having an irritant taste; hence turˈpetholate, a salt of turpetholic acid.
1868Watts Dict. Chem. V. 926 When turpethin is dissolved in warm baryta-water, the baryta removed [etc.], turpethic acid remains as an amorphous yellowish mass. Ibid., Under the influence of mineral acids, it [turpethin] is re-dissolved into glucose and turpetholic acid. Ibid., Turpetholate of Sodium, C16H31NaO4. |