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Glite Dictionary
📏 Sight ruler tool 🔭 Movable telescope part
alidad

alidad

9.9
Movable top part of a survey instrument with a small telescope used to measure angles
  • noun
  • /əˈlɪdəd/
  • Specialized
translation icon : alidad
  • After replacing the alidad, the surveyor recalibrated the theodolite for accurate readings.

Examples

  • When setting up the theodolite, the engineer verified that the alidad was aligned properly for accurate surveying.

  • The alidad must be carefully aligned to measure the correct horizontal angle.

  • Early astronomers also relied on the alidad to track celestial movements.

  • The alidad is crucial for accurate angle measurement.

  • Many engineers prefer using a high-quality alidad.

  • The surveyor used the alidad to ensure precise angle measurements during the construction project.

  • To accurately determine the property's boundaries, they adjusted the alidad on the theodolite before taking readings.

Synonyms

alidade
vsalidad
  • Specialized
9.9

A tool used to measure directions or angles when mapping land

is the movable upper part of that instrument used to measure angles

Surface Forms

alidad singular
alidades plural

Etymology

Alidad comes from Spanish and before that from Arabic, where al- means 'the' and the rest named a measuring tool. So an alidad is the moving sighting part of a theodolite used to line up and measure angles.