单词 | heliographic |
释义 | heliographicadj. 1. Pertaining to the description of the sun. heliographic latitude or longitude: the latitude or longitude of points on the sun's surface, referred to the sun's equator and to a meridian passing through the node of this with the ecliptic. (Cf. geographic adj.) ΘΚΠ the world > the universe > cosmology > astronomy > stars > [adjective] > sun heliographic1706 1706 Phillips's New World of Words (new ed.) at Charts Heliographick Charts, Descriptions of the Sun's Body, and of its Maculæ, or Spots. 1879 S. Newcomb & E. S. Holden Astron. for Schools & Coll. 289 The heliographic latitude of the spot, or its angular distance from the solar equator. 2. ΘΚΠ society > leisure > the arts > visual arts > photography > [adjective] photogenic1835 photographic1839 heliographic1840 photographical1842 photo1878 1840 Proc. Amer. Philos. Soc. 1838–40 1 181 Dr. Patterson exhibited some specimens of the Heliographic Art (Daguerreotype). 1855 tr. Niépce de St. Victor's Researches i. 44 The heliographic images coloured by its light. b. Belonging to photographic engraving: see heliograph n. 1, heliography n. 3. ΘΚΠ society > leisure > the arts > visual arts > printmaking > photomechanical or process printing > [adjective] > photogravure heliographic1851 photoglyphic1852 phototypic1859 photogravure1879 photo-etched1894 Ben Day1912 1851 R. Hunt Man. Photogr. ix. 107 Producing a better effect than was given by the Heliographic process in several hours. 1855 Lacan Pref. Niépce de St. Victor's Researches 21 The remarkable works which heliographic engraving has produced. 1858 Photogr. Notes III. 260/2 The heliographic image formed by the sensitive varnish acted on by the light. 1875 tr. H. W. Vogel Chem. Light & Photogr. i. 12 Printed off from heliographic plates. 3. Pertaining to or obtained by the signalling apparatus called a heliograph (see heliograph n. 4). ΘΚΠ society > communication > indication > signalling > visual signalling > heliography > [adjective] heliographic1880 1880 Standard 8 Apr. 5/3 Hughes's Brigade is in heliographic communication with Khelat-i-Ghilzai. 1897 Ld. Roberts 41 Years in India II. liv. 258 The more perfect heliographic apparatus which is now available. Derivatives helioˈgraphical adj. = heliographic adj. helioˈgraphically adv. by means of a heliograph n. (sense 4 in quot. 1884). ΚΠ 1884 Sat. Rev. 26 Jan. 120 How the relieving force first came heliographically into communication with Candahar. This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2022). < adj.1706 |
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