astrolabe

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as·tro·labe

 (ăs′trə-lāb′)
n.
A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.

[Middle English astrelabie, from Old French astrelabe, from Medieval Latin astrolabium, from Greek astrolabon, planisphere : astro-, astro- + lambanein, lab-, to take.]

astrolabe

(ˈæstrəˌleɪb)
n
1. (Navigation) an instrument used by early astronomers to measure the altitude of stars and planets and also as a navigational aid. It consists of a graduated circular disc with a movable sighting device. Compare sextant
2. (Astronomy) an instrument used by early astronomers to measure the altitude of stars and planets and also as a navigational aid. It consists of a graduated circular disc with a movable sighting device. Compare sextant
3. (Tools) an instrument used by early astronomers to measure the altitude of stars and planets and also as a navigational aid. It consists of a graduated circular disc with a movable sighting device. Compare sextant
[C13: via Old French and Medieval Latin from Greek, from astrolabos (adj), literally: star-taking, from astron star + lambanein to take]

as•tro•labe

(ˈæs trəˌleɪb)

n.
a medieval instrument used to determine the position of the sun or stars.
[1325–75; Middle English, variant of astrolabie < Medieval Latin astrolabium < Late Greek astrolábion, Greek astrolábos=astro- astro- + -labos to seize]
as`tro•lab′i•cal (-ˈlæb ɪ kəl, -ˈleɪ bɪ-) adj.

astrolabe

a navigational instrument formerly used for taking bearings of the sun and stars. See also representation.
See also: Instruments
a stereographic projection of the earth, as a sphere, on the plane of one of the great circles. Also called planisphere.
See also: Representation
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.astrolabe - an early form of sextantastrolabe - an early form of sextant    
sextant - a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
Translations

astrolabe

[ˈæstrəʊleɪb] Nastrolabio m

astrolabe

nAstrolab(ium) nt