Definition of Astrolabe
1. Noun. An early form of sextant.
Definition of Astrolabe
1. n. An instrument for observing or showing the positions of the stars. It is now disused.
Definition of Astrolabe
1. Noun. An astronomical and navigational instrument for gauging the altitude of the Sun and stars. ¹
¹ Source: wiktionary.com
Definition of Astrolabe
1. [n -S]
Medical Definition of Astrolabe
1.
1. An instrument for observing or showing the positions of the stars. It is now disused.
Among the ancients, it was essentially the armillary sphere. A graduated circle with sights, for taking altitudes at sea, was called an astrolabe in the 18th century. It is now superseded by the quadrant and sextant.
2. A stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere.
Origin: OE. Astrolabie, astrilabe, OF. Astrelabe, F. Astrolabe, LL. Astrolabium, fr. Gr.; star +, to take.
Source: Websters Dictionary
(01 Mar 1998)
Lexicographical Neighbors of Astrolabe
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