| 释义 |
‖ quebracho|keˈbratʃo|
Also quiebrahacha.
[Sp. quebracho, also quiebra-hacha, f. quebrar to break + hacha axe.]
a. The name of several American trees, having extremely hard timber and medicinal bark; esp. the white quebracho of S. America (Aspidosperma Quebracho) and the red quebracho of Mexico (Schinopsis Lorentzii). Also, the timber of these trees. Also attrib. as quebracho bark, quebracho gum.
b. = Quebracho-bark. Hence queˈbrachamine, queˈbrachine, alkaloids found in quebracho-bark.
1881Watts Dict. Chem. 3rd Suppl. 916, 1731. 1889 G. S. Boulger Uses of Plants v. 159 Red Quebracho..is a hard wood from the River Plate... Other Quebrachos..are also used in South America. 1891W. Martindale Extra Pharmacop. (ed. 6) 325 White Quebracho Bark..imported from the Argentine Republic. Ibid., Quebracho contains six alkaloids,..Quebrachine, Quebrachamine [etc.]. 1897Syd. Soc. Lex. s.v., Quebracho is a valuable remedy for dyspnœa. 1908W. R. Fisher Schlich's Man. Forestry (ed. 2) V. i. viii. 572 Experimental use is also made of pitch pine and quebracho wood [for railway sleepers]. 1913Chambers's Jrnl. 28 June 480/2 Quebracho (‘break-axe’), one of the hardest, heaviest, and most durable woods known. 1923Nature 8 Sept. 376/2 The principal sources of this [sc. tannin] are oak galls and bark, mangrove bark, Myrobalans, Quebracho, and Acacia decurrens. 1924Record & Mell Timbers Trop. Amer. ii. 508 White quebracho is the name most commonly applied to Aspidosperma quebracho-blanco..of Argentina, Paraguay, and south-western Brazil. 1933H. Allen Anthony Adverse v. xxix. 409 It was full of a thousand lush and exotic odours from..juniper and lantana; the fragrant quiebrahacha, tamarind and rotting mastic leaves. 1955Times 30 June 18/2 The production of Quebracho extract during the year amounted to 81,644 tons. 1969T. C. Thorstensen Pract. Leather Technol. ix. 140 Quebracho extract is used in the manufacture of heavy leathers and in the vegetable re-tanning of chrome tanned upper leathers. 1974D. Meiring President Plan ix. 74 A big fire of quebracho glowed and flickered. |