| 释义 |
guaiac|ˈgwaɪək|
Also 7 guajack, guaic, 9 guiac.
[ad. mod.L. guaiac-um. Cf. F. gaïac, gayac (1532 Rabelais).]
a. = guaiacum 2, 3.
1558Warde tr. Alexis' Secr. i. (1559) 5 The barke of Lignum Sanctum called Guaiac. 1604E. G[rimstone] D'Acosta's Hist. Indies iv. xxix. 288 The wood of Guayac, which they call Lignum sanctum, or Indian wood..is as heavie as yron. 1638A. Read Chirurg. xi. 81 The decoction of guajack is good, used in stead of ordinarie drink. 1661Hickeringill Jamaica 22 Medicinal Drugs, as..Gum Guaic. 1727–51Chambers Cycl. s.v., The wood guaiac is extremely hard and heavy. 1811A. T. Thomson Lond. Disp. (1818) 188 The wood of guaiacum is inodorous... The resin, or guaiac, has a fragrant odour, with scarcely any taste. 1875H. C. Wood Therap. (1879) 538 Guaiac, as an emmenagogue, is much less stimulating than cantharides.
b. attrib., as guaiac-resin, guaiac-tree, guaiac-wood; guaiac test, a test for the absence of blood from the urine or fæces involving guaiac as a reagent.
1727–51Chambers Cycl. s.v., The guaiac-tree is of the height of our walnut-tree. 1767Monro in Phil. Trans. LVII. 504, I had some guaiac wood. 1838Penny Cycl. XI. 463/2 Genuine guaiac-wood is destitute of smell, but if rubbed, and still more if set on fire, it evolves an agreeable aromatic odour. Ibid., Guaiac resin exudes spontaneously, or in consequence of incisions. 1894Gould Illustr. Dict. Med. 1479/1 Guaiac-test. Blood. 1897Allbutt's Syst. Med. IV. 730 A pastil containing 2 grs. of guaiac resin, &c. 1904C. H. Bedford Clin. Handbk. Urine Anal. (ed. 2) 72 The Guaiac test is an exceedingly delicate one. 1953J. C. Todd et al. Clin. Diagnosis (ed. 12) iv. 326 The benzidine test..is similar to the guaiac test and has the same fallacies, but is distinctly more sensitive. |