| 单词 |
spectacle-glass |
| 释义 |
spectacle-glass
[spectacle n.1]
1. A lens of a pair of spectacles.
a1583in Halliwell Rara Mathem. (1841) 40 For makinge of the smallest sorte of them, commonly called spectacle glasses. 1697C'tess D'Aunoy's Trav. (1706) 146 Proportionably as a Man's Fortune rises, he increases in the largeness of his Spectacle-Glasses and wears them higher upon his Nose. 1761–9tr. Voltaire's Works XXVI. 196 (Jod.), A lentular spectacle-glass. 1852Mrs. Stowe Uncle Tom's C. ix, He..seemed particularly busy in clearing his throat and wiping his spectacle-glasses. 1879Cassell's Techn. Educ. II. 177/1 Preference is usually given to bi-convex and bi-concave spectacle glasses.
†2. A lens used as, or in, a microscope or telescope. Obs.
1671Grew Anat. Pl. i. i. (1682) 2 Magnified with a good Spectacle-Glass. Ibid. 20 A lesser sort, which by the help only of a good Spectacle Glass may be observ'd. a1697Aubrey Lives (1898) I. 283 Anno 1678, he [Halley] added a spectacle-glasse to the shadowe-vane of the lesser arch of the sea-quadrant (or back-staffe). |
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