Theodolite

//θiːˈɒdəlaɪt// noun

Definitions

Noun
  1. 1
    A surveying instrument, consisting of a small mounted telescope, used to measure horizontal and vertical angles.

    "I drew outlines (according to my usual custom) of all the hills on the horizon before us, and took angles on them with the theodolite."

  2. 2
    a surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod wordnet

Etymology

From New Latin theodolitus (1571), perhaps containing Ancient Greek θέᾱ (théā, “sight, view”) and Arabic العِضَادَة (al-ʕiḍāda, “astrolabe, alidade”); if so, doublet of alidade.

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