| 释义 |
Congo|ˈkɒŋgəʊ|
The name of a country on the west coast of Africa, south of the Equator, whence many Black slaves were carried to America. Hence, the name has been given in N. America to Black people from Congo, and to things belonging to or used by them; also (apparently), to various animals of black colour: cf. Negro.
1. A Black person from Congo. Congo dance: a kind of African dance practised by Blacks. Congo pea: a variety of Cajan, eaten by Black people in Jamaica.
1803J. Davis Trav. U.S.A. 380 There was nobody that could face him at a Congo Minuet. 1823I. Holmes Acct. U.S.A. 332 In Louisiana, and..Mississippi, the slaves..dance for several hours... The general movement is in what they call the Congo dance. 1835Longstreet Georgia Scenes 128 The minuet,..and the congo, which was only to chase away the solemnities of the minuet. 1866Treas. Bot. 189/2 The Congo pea is harder and coarser, and is only used by negroes. 1877F. A. March Anglo-Sax. Gram. (1883) 36 There may be as many genders as there are sets of terminations..the Congoes and Caffirs have many. 1886G. W. Cable in Century Mag. XXXI. 522/2 They from whom the dance and the place are named, the most numerous sort of negro in the colonies, the Congoes and Franc-Congoes. Ibid. 527/2 There were other dances..the Voudou, and the Congo..The latter, called Congo also in Cayenne, Chica in San Domingo. 1956[see bamboula].
2. Congo ape = Congo monkey; Congo monkey, a black South American monkey, a species of the Howler, Mycetes palliatus; Congo snake, a name given to one or two blue-black amphibians, species of Amphiuma, found in the southern parts of the United States; also ellipt.
1863Trollope Tales of all Countries (2nd Ser.) 211 The clang of the macaws..,or the roaring of the little congo ape.
1874T. Belt Nat. in Nicaragua 35 High up in one tree..were seated some of the black Congo monkeys (Mycetes palliatus).
1835J. J. Audubon Ornith. Biogr. III. 90 The Congo snake and water-moccasin glide before you. 1865S. Tenney Zool. 315 The Congo Snake, Amphiuma means, L., of the Southern States, is about twenty-eight inches long, bluish black. 1888G. W. Cable Bonaventure 284 A large moccasin..of that yet deadlier..black sort, an ell in length, which the swampers call the Congo. 1947Chicago Tribune (Grafic Mag.) 21 Dec. 9/3 There were malaria and typhus in the swamps, and many snakes: rattlers, moccasins, copperheads, and the Congo, a blue black eel, most feared of all.
3. Used attrib. to designate any of a group of azo-compounds, dyes mostly derived from benzidine or tolidine, so called after Congo red, the first of the direct cotton colours to be isolated.
1885Jrnl. Soc. Dyers & Colourists I. 146/2 Congo Red... This colouring matter..is of special interest, owing to its remarkable property of dyeing cotton..without the aid of a mordant. Ibid. 147/1 Cotton, immersed into a boiling solution of Congo red, is rapidly dyed a brilliant scarlet. 1886Jrnl. Chem. Soc. L. 889 Congo-red..when reduced in ammoniacal solution with zinc-dust, yields benzidine and a colourless..acid. 1905Cain & Thorpe Synth. Dyestuffs xi. 70 A mixed benzidine dyestuff—Congo Corinth—is produced. Ibid. 73 Congo brown G [A]..Congo brown R [A]. 1915Jrnl. Chem. Soc. CVIII. i. 321 Blue and Red Congo Dyes. Ibid. 322 Isomeric Congo-acids have been isolated. 1920Ibid. CXVIII. ii. 171 Colour Change of Congo-rubin. 1922R. N. Shreve et al. Dyes Classified i. 84 Dyes derived from Amino-R acid..Congo Orange R. Ibid. 127 Dyes derived from Benzidine..Congo Rubine. Ibid. 202 Dyes derived from Dianisidine..Congo Blue 2 B. 1940Thorpe's Dict. Appl. Chem. IV. 12/1 Benzidine finds..its greatest application in the manufacture of direct cotton dyestuffs, which result on tetrazotisation..e.g. Congo Red..results from coupling with naphthionic acid. Ibid. 218 Congo Rubine: Benzidine, Naphthionic acid, Crocein acid. Ibid. 219 Congo Corinth GW: Benzidine, Naphthionic acid, N.W.-acid. 1960Stanton Dict. for Med. Secretaries 36/1 Congo Red test of renal function, a test for amyloidosis. 1964M. Hynes Med. Bacteriol. (ed.8) xi. 150 Two drops of 0·2 per cent Congo red are added, and a few drops of N HCl to give a slate-blue colour. |