| 单词 | physical horizon |
| 释义 | > as lemmasphysical horizon a. The boundary-line of that part of the earth's surface visible from a given point of view; the line at which the earth and sky appear to meet. In strict use, the circle bounding that part of the earth's surface which would be visible if no irregularities or obstructions were present (called the apparent horizon, natural horizon, sensible horizon, physical horizon, or visible horizon, as distinguished from 3), being the circle of contact with the earth's surface of a cone whose vertex is at the observer's eye. On the open sea or a great plain these coincide. ΘΚΠ the world > the earth > region of the earth > horizon > [noun] horizonc1374 horizontal1555 rim1712 weather-gleam1802 skyline1815 sea-horizon1822 verge1822 sea-line1880 sea-rima1881 α. β. 1398 J. Trevisa tr. Bartholomew de Glanville De Proprietatibus Rerum viii. vi. (Tollem. MS.) The circle to þe whiche þe syȝte streccheþ and endeþ is calde Orizon, as it were þe ende of þe syȝte.1413 Pilgr. Sowle (1859) v. xiv. 81 The sonne..hastyd hym vpward toward the eest oryson, to bringe ageyne the day.c1550 Sheph. Kal. (1604) Contents xxxv Of the rising and descending of the signes in the horyson.1610 P. Holland tr. W. Camden Britain i. 631 Wilde Deere..feeding aloft..in the farthest Horizon or kenning of their sight.1667 J. Milton Paradise Lost ix. 52 Nights Hemisphere had veild the Horizon round. View more context for this quotation1744 J. Thomson Spring in Seasons (new ed.) 41 Like far Clouds That skirt the blue Horizon.1810 S. Rogers Voy. Columbus i. 4 Stars rose and set; and new horizons glow'd.1887 C. Bowen tr. Virgil Æneid i, in tr. Virgil in Eng. Verse 79 Æneas explores meanwhile with his glance All the horizon of waters.c1374 G. Chaucer Troilus & Criseyde v. 276 And whiten gan the Orisonte shene. 1390 J. Gower Confessio Amantis III. 108 By thorizont, as to us semeth. c1405 (c1395) G. Chaucer Franklin's Tale (Hengwrt) (2003) l. 309 For thorisonte hath reft the Sonne his light. 1556 R. Record Castle of Knowl. 21 The Horizonte is a cyrcle whiche parteth that parte of the worlde that wee see, from that whiche wee see not. 1556 R. Record Castle of Knowl. 179 The other horizont, whiche I thinke moste aptlye to bee called the Earthly horizont, bycause it..reacheth not vnto the skie..his semidiameter excedeth not..22 myles and a halfe. 1559 W. Cuningham Cosmogr. Glasse 149 Whan as the Mone shall shew her selfe above the Horizont. physical horizon physical horizon n. rare the circle where the earth's surface touches a cone whose vertex is at the observer's eye. ΚΠ 1743 Chambers's Cycl. (ed. 5) (at cited word) Natural Horizon is the sensible or physical horizon. 1851 Encycl. Americana VI. 426/1 By sensible horizon is also frequently meant a circle which determines the segment of the surface of the earth over which the eye can reach; called, also, the physical horizon. 1889 Cent. Dict. at Horizon Physical horizon. < as lemmas |
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