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Glossary of Surveying Terms
beginning with letter H
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hachure Tweet Definition of hachure Like Definition of hachure on Facebook
noun 
  1. (cartography) a line on a map indicating the steepness of a slope
     
heliotrope Tweet Definition of heliotrope Like Definition of heliotrope on Facebook
noun 
  1. (botany) A plant that turns so that it faces the sun.
  2. (botany) Particularly, a purple-flowered plant of the species Heliotropium arborescens.
    • 1870, Benjamin Disraeli, Lothair
    • :As they entered now, it seemed a blaze of roses and carnations, though one recognized in a moment the presence of the lily, the heliotrope, and the stock.
      1. (colour) A light purple or violet colour.
      <table><tr><td>heliotrope colour: &nbsp;</td><td bgcolor="
    • 9B8A86" width="80">&nbsp; </td></tr></table>
      1. The fragrance of heliotrope flowers.
    • 1881, Henry James, The Portrait of a Lady
    • :... he had always smelt so much more of than of gunpowder.
      1. (mineralogy) A bloodstone (a variety of quartz).
adjective 
  1. (colour) Light purple or violet.
    • 1904, Jerome K. Jerome, Tommy and Co.
    • :Lady in a dress with a lace collar, three flounces on the skirt?
    • 1917, Zane Grey, Wildfire
    • :And following that was a tortuous passage through a weird region of clay dunes, blue and violet and and lavender, all worn smooth by rain and wind.
      1. Keeping one"s face turned toward the sun.
    • 1851, Herman Melville, Moby Dick
    • : while still as on the night before, slouched Ahab stood fixed within his scuttle; his hid, glance anticipatingly gone backward on its dial; sat due eastward for the earliest sun.
     
hub Tweet Definition of hub Like Definition of hub on Facebook
noun 
  1. The central part, usually cylindrical, of a wheel; the nave
  2. A point where many routes meet and traffic is distributed, dispensed or diverted
Hongkong airport is one of the most important air traffic hubs in Asia.
  1. (computers) a computer networking device connecting several ethernet ports. See switch.
  2. (surveying) A stake with a nail in it, used to mark a temporary point.
     

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