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Meaning of ALIDADE

Pronunciation:  'ali`deyd

WordNet Dictionary
 
 Definition: 
  1. [n]  surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
  2. [n]  surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
 
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 Synonyms: alidad
 
 See Also: surveying instrument, surveyor's instrument, theodolite, transit

 

 

Webster's 1913 Dictionary
 
 Definition: 
\Al"i*dade\, n. [LL. alidada, alhidada, fr. Ar.
al-'id[=a]da a sort of rule: cf. F. alidade.]
The portion of a graduated instrument, as a quadrant or
astrolabe, carrying the sights or telescope, and showing the
degrees cut off on the arc of the instrument --Whewell.
 
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Glossary
 
 Definition: an optical surveying instrument used in conjunction with a plane-table and stadia-rod to produce detailed large-scale topographic maps.
 
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