Search Result for "alidade": 
Wordnet 3.0

NOUN (2)

1. surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments;
[syn: alidade, alidad]

2. surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles;
[syn: alidade, alidad]


The Collaborative International Dictionary of English v.0.48:

Alidade \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. [1913 Webster]
WordNet (r) 3.0 (2006):

alidade n 1: surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments [syn: alidade, alidad] 2: surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles [syn: alidade, alidad]