About The Word Astrolabe
Learn about the word Astrolabe to help solve your crossword puzzle. Discover Astrolabe definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Astrolabe
| Astrolabe Definition And Meaning |
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What's The Definition Of Astrolabe?
[n] an early form of sextant
Synonyms | Synonyms for Astrolabe: Related Terms | Find terms related to Astrolabe: See Also | sextant Astrolabe In Webster's Dictionary \As"tro*labe\ ([a^]s"tr[-o]*l[=a]b), n. [OE.
astrolabie, astrilabe, OF. astrelabe, F. astrolabe, LL.
astrolabium, fr. Gr. 'astrola`bon; 'a`stron star + ?, ?, to
take.]
1. (Astron.) An instrument for observing or showing the
positions of the stars. It is now disused.
Note: 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 It is now superseded by the quadrant and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. --Whewell.
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