Alidade Definition
ălĭ-dād
noun
An indicator or a sighting apparatus on a plane table, used in angular measurement.
American Heritage
A part of an optical or surveying instrument, consisting of the vernier, indicator, etc.
Webster's New World
A topographic surveying and mapping instrument used for determining directions, consisting of a telescope and attached parts.
American Heritage
A surveying instrument consisting of a telescope mounted on a rule, used in topography.
Webster's New World
(cartography, astronomy, surveying) A sighting device used for measuring angles.
Wiktionary
Synonyms:
- alidad
Other Word Forms of Alidade
Noun
Singular:
alidade
Plural:
alidadesOrigin of Alidade
-
French from Medieval Latin alidada sighting rod from Arabic al-‘iḍāda the revolving radius of a circle al- the ‘iḍāda revolving radius (alternate form of ‘aḍud humerus) (from ‘aḍada to lop, cut (trees) ʕṣ́d in Semitic roots)
From American Heritage Dictionary of the English Language, 5th Edition
-
From French alidade, from Spanish alidada, from Arabic عِضَادة, perhaps from عضد (“upper arm”).
From Wiktionary
Alidade Is Also Mentioned In
Find Similar Words
Find similar words to alidade using the buttons below.