| 释义 |
digitalin Chem.|ˈdɪdʒɪtəlɪn|
[f. digital-is + -in.]
The substance or substances extracted from the leaves of the fox-glove, as its active principle.
Originally supposed to be an alkaloid, and hence named digitalia, digitaline, but now known not to contain nitrogen. There is reason to think, however, that different bodies are included under the name.
1837Penny Cycl. VIII. 496/1 An extractive substance..to which the name of Digitaline has been given. [Ibid. 495 Digitalia, a vegetable alkali procured from the..foxglove. 1838T. Thomson Chem. Org. Bodies 283 Digitalina has not yet been obtained in an isolated state.] 1872Watts Dict. Chem. VI. 545 The more soluble (so-called German) digitalin is obtained from the seeds, the less soluble or crystallised variety from the leaves of the foxglove. 1875H. C. Wood Therap. (1879) 134 Crystallizable digitalin occurs in..needle-shaped crystals, and possesses an intense and persistent bitter taste. 1881Standard 30 Dec. 2/5 He asked for five grains of pure digitalin, the active principle of foxglove.
Hence digitalinic |-ˈlɪnɪk| a., in digitalinic acid, ‘an acid obtained by boiling insoluble digitalin with soda’ (Syd. Soc. Lex.). |