| 释义 |
‖ podophyllum|pɒdəʊˈfɪləm|
[mod. Bot. L., f. Gr. ποδο-, podo- + ϕύλλον leaf.]
a. Bot. A genus of Ranunculaceæ with two known species, P. peltatum of eastern N. America, and P. Emodi of the Himalayas, having long thick creeping rhizomes, large long-stalked palmately lobed leaves, and a solitary white flower.
b. Pharm. The dried rootstock of P. peltatum. Also attrib. Hence podoˈphyllic a. Chem., of or pertaining to podophyllum; esp. in podophyllic acid, a crystalline acid obtained from podophyllin; podoˈphyllin Chem., a yellow bitter resin having cathartic properties, obtained from the dried rhizome of P. peltatum; = resin of podophyllum.
1760J. Lee Introd. Bot. Table i. (1788) 292 Podophyllum, Duck's-Foot, or May Apple. 1842Dunglison Med. Lex. (1855) s.v., The root or rhizoma, Podophyllum (Ph. U.S.), is purgative in the dose of 20 grains. 1863N. Syd. Soc. Year-bk. Med. 457 The action of podophyllin is favourably contrasted with that of calomel. 1866Aitken Pract. Med. II. 53 Podophyllin. 1874Garrod & Baxter Mat. Med. (1880) 183 The resin or Podophylline is a pale greenish⁓brown amorphous powder. 1875H. C. Wood Therap. (1879) 471 Podophyllum acts as a purgative like jalap, but more slowly and continuously. |