Definition of Alidade

Babylon English
alidade
n. tool used in topographic surveying; indicator on a plane table

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Alidade definition was found in categories: Language, Idioms & Slang(3)  Entertainment & Music(1)  Science & Technology(1)  Encyclopedia(1)  

Alidade Definition from Language, Idioms & Slang Dictionaries & Glossaries

Webster's Revised Unabridged Dictionary (1913)
Alidade
(n.)
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
  

WordNet 2.0
alidade

Noun
1. surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
(synonym) alidad
(hypernym) surveying instrument, surveyor's instrument
(part-holonym) theodolite, transit
2. surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
(synonym) alidad
(hypernym) surveying instrument, surveyor's instrument

hEnglish - advanced version
alidade

alidade
\al"i*dade\ (&?;), n. [ll. alidada, alhidada, fr. ar. al-'idāda 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



Alidade Definition from Entertainment & Music Dictionaries & Glossaries

English to Federation-Standard Golic Vulcan
Alidade
dah-glanekik pa'ash-pasu-skothonek


Alidade Definition from Science & Technology Dictionaries & Glossaries

Glossary of Cartographic Terms
alidade
Instrument, or part of an instrument , for determining direction , either horizontal or vertical . In its simplest form, a peepsight or telescope mounted on a straightedge and used for plotting directions graphically. In such instruments as transits and theodolites, the alidade is the part containing the telescope and its attachments.


Alidade Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
Alhidade
The Alhidade, alidade or alidad was originally a part of many different scientific or astronomical instruments. With changes in technology, the name is now applied to complete instruments such as the plane table alidade.

An alidade is a device that allows one to sight a distant object and use the line of sight to perform a task. This task can be, for example, to draw a line on a plane table in the direction of the object or to measure the angle to the object from some reference point. Angles measured can be horizontal, vertical or on any chosen plane.


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