alidade : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: alidade	by the DICT Development Group
2 results for alidade
From WordNet (r) 3.0 (2006) [wn]:
alidade n surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments Synonym(s): alidade, alidad surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles Synonym(s): alidade, alidad
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Alidade \Al"i*dade\, n. [LL. alidada, alhidada, fr. Ar. al-'id[be]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.