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alidade

Syllabification: (al·i·dade)
Pronunciation: /ˈaliˌdād/

Definition of alidade

noun

  • a sighting device or pointer for determining directions or measuring angles, used in surveying and (formerly) astronomy.

Origin:

late Middle English: directly or (in modern use) via French and Spanish from Arabic al- ‘iḍāda 'the revolving radius', probably based on ‘aḍud 'upper arm'

alidade in other Oxford dictionaries

Definition of alidade in the British & World English dictionary

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