单词 | sundial |
释义 | sundialn. 1. An instrument used for telling the time outdoors, consisting of a flat surface marked with the hours of the day and a rod or triangular plate of metal (called a gnomon) which casts the shadow of the sun on to the surface to indicate the time. In earlier use called simply a dial (see dial n.1 2a).Now typically associated with large stationary instruments found in gardens and public spaces or on the walls of buildings and often regarded as decorative and ornamental rather than functional. In the past, portable instruments were also widely used, usually accompanied by a compass to aid correct orientation of the dial. ΘΚΠ the world > time > instruments for measuring time > [noun] > sundial chilindrec1386 dialc1425 sundial1555 clocka1562 cylinder1593 horoscope1623 compass-dial1632 moon dial1664 ring dial1667 heliotrope1669 pole-dial1669 sciatheric1682 spot dial1687 polar dial1688 sun clock1737 meridian ring1839 solarium1842 journey-ring1877 scratch dial1914 1555 L. Digges Prognostication Right Good Effect sig. Fiii In any true fixed, or, movable Sunne Dial. c1629 in A. Macdonald & J. Dennistoun Misc. Maitland Club (1843) III. ii. 375 Ane Sone dyall and ane piller to set it on. 1665 R. Boyle Occas. Refl. iv. xv. sig. Ff8v The Boat-man took out of his Pocket a little Sun-Dyal, furnished with an excited Needle to direct how to Set it. 1711 J. Swift Var. Thoughts in Misc. Prose & Verse 243 Like a Sundial on the Front of a House, to inform the Neighbours and Passengers, but not the Owner within. 1794 R. J. Sulivan View of Nature II. 320 Had the Romans any thing so scientific as a sun-dial, even during the second Punic war? 1861 T. Hughes Tom Brown at Oxf. I. Introd. 2 The great college sun-dial, over the lodge. 1874 J. T. Micklethwaite Mod. Parish Churches 183 A good terse motto is a desirable addition to a sun-dial. 1942 L. D. Rich We took to Woods viii. 218 Our tangles of zinnias and larkspur and violas, slopping over into rather shaggy grass paths, may be a pretty far cry from shell walks and clipped hedges and roses around a sun dial; but we love them. 2005 Brit. Life Jan. 44/3 In the Old Court of Queens' College there is a 17th century sundial, one of the finest examples in Britain. 2. More fully sundial shell. Any of the tropical marine gastropod molluscs of the family Architectonicidae, esp. of the genus Architectonica (formerly Solarium), having a flattened conical shell which is typically cream and brown in colour; the family itself. Also: the shell of such a mollusc. Occasionally with distinguishing word. Cf. staircase-shell n. at staircase n. Compounds 2. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > other types of gastropod mollusc purpura1598 patella1671 canoe-shell1711 oliva1823 monoceros1828 Olivella1835 holostome1864 sundial1868 archaeogastropod1955 1823 in Q. Jrnl. Sci. & Arts July 252 Solarium. [Note A sun-dial.] Shell orbicular, depressed conical.] 1868 tr. L. Figuier Ocean World 412 Besides the genus Trochus naturalists range a pretty marine shell, called the Sun-dial (Solarium). 1885 Standard Nat. Hist. I. 326 Solarium perspectivum has received the common names of perspective shell and sun-dial shell. 1908 J. E. Rogers Shell Bk. xxvii. 156 The Granulated Sun-dial Shell (S. granulatum, Lam.)..is finely checked by the crossing of spiral and radiating ridges, so as to have raised granules all over its upper surface. 1971 Biol. Bull. 140 296 Architectonicidae or sundial shells are a family of subtidal gastropods represented in tropical waters throughout the world. 2011 B. Witherington & D. Witherington Living Beaches Georgia & Carolinas 70 Sundials spend their days buried spire-down in the sand and emerge at night to feed on sea pansies. This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022). < n.1555 |
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