Alidad

1 definition found

From WordNet (r) 2.0 [wn]:

  alidad
       n 1: surveying instrument consisting of the upper movable part of
            a theodolite including the telescope and its attachments
            [syn: {alidade}]
       2: surveying instrument used with a plane table for drawing
          lines of sight on a distant object and for measuring


          angles [syn: {alidade}]