| 释义 |
‖ regulus|ˈrɛgjʊləs|
Pl. reguli |ˈrɛgjʊlaɪ|.
[L., dim. of rēg-, rex king.]
1. Astron. (Now with capital initial.) A bright star (α Leonis) in the constellation Leo, called also Cor Leonis.
1559W. Cuningham Cosmogr. Glasse 108 Then I find by that obseruation, the Mone to differ from regulus, j. degree .43. min. 1704J. Harris Lex. Techn. I. 1727–38 Chambers Cycl. s.v., The longitude of regulus, as fixed by Mr. Flamsteed, is 25°, 31′, 20{pp}. 1868Lockyer Guillemin's Heavens (ed. 3) 325 It is at the lower extremity..that Regulus, a star of the first magnitude,..shines. 1889C. L. Markham Hues' Treat. Globes 219 The lunar distances of Regulus are given in the Nautical Almanac.
2. Chem.
†a. The metallic form of antimony, so called by early chemists, app. on account of its ready combination with gold. Obs.
b. The purer or metallic part of a mineral, which sinks to the bottom of a crucible or furnace and is thus separated from the remaining matter.
c. A product of the smelting of various ores, as copper, lead, and silver, consisting of metal in a still impure state.
1594Plat Jewell-ho. ii. 45 Mixed with the Regulus of Antimonie. 1651Wittie tr. Primrose's Pop. Err. 455 The Antimoniall Cup, or the Regulus out of which it is made. 1678Phil. Trans. XII. 953 The first regulus of Gold being separated from the Antimony, both were powdered apart. 1683Pettus Fleta Min. i. (1686) 26 A little Regulus of Lead at the Bottom, which is to be separated. 1709Phil. Trans. XXVI. 379 Iron deprived of this sulphurous part, melts into a Regulus. 1744Berkeley Siris §169 Four ounces of regulus of antimony being calcined by a burning-glass. 1796Kirwan Elem. Min. (ed. 2) II. 105 He places these Reguli under a muffle. Ibid. 454 The purest Regulus of Nickel. 1825J. Nicholson Operat. Mechanic 757 There is a great difference in the reguli of iron. 1868Joynson Metals 97 The metal [is] run into pigs, in the state known technically as ‘coarse metal’, or, more generally ‘regulus’. 1874Raymond Statist. Mines & Mining 306 Yielding a regulus assaying 30 per cent. of copper.
attrib.1859Sevin in Jrnl. Geog. Soc. XXX. 40 The mines produced last year 4,000 quintals of regulus copper. 1868Joynson Metals 107 Then add 8 oz. regulus antimony.
3. A petty king or ruler.
1682T. A. Carolina 36 They are divided into many Divisions or Nations, Govern'd by Reguli, or Petty Princes, which our English call Cacicoes. 1727–38Chambers Cycl. s.v., In the archives of the cathedral of Worcester, Uthredus sometimes styles himself regulus, and sometimes sub-regulus. 1807G. Chalmers Caledonia I. ii. ii. 238 A very strong hill-fort..formed a secure residence for their reguli. 1867Burton Hist. Scot. I. i. 5 Agricola cultivated the acquaintance of a certain Regulus, prince, or chief of Ireland, driven forth by political animosities.
4. The golden-crested (and fire-crested) wren. Cf. kinglet 2.
[1706Phillips (ed. Kersey), Regulus,..also a little Bird call'd a Wren. 1797Encycl. Brit. (ed. 3) XII. 398/1 The regulus, or gold-crested wren, is a native of Europe.] 1824Selby in Mem. Wernerian Nat. Hist. Soc. V. 400, I have not yet ascertained whether the Reguli of the southern parts of England were likewise observed to migrate. 1842C. W. Johnson Farmer's Encycl. 1036/2 The golden crested regulus or kinglet..is most frequently to be observed in fir plantations. 1851J. M. Wilson Rural Cycl. s.v., The fire-crested regulus, R. ignicapillus, is not so common as the preceding species, and is about half an inch longer.
5. Geom. A ruled surface; the locus of a singly infinite system of lines, where the consecutive lines do not intersect.
1879Cayley in Encycl. Brit. X. 417/1. 1887 Ibid. XXII. 669/2 A quadratic surface is a regulus in a twofold manner, for there are on the surface two systems of lines each of which is a regulus. |