astrolabe
[ as-truh-leyb ]
/ ˈæs trəˌleɪb /
noun
an astronomical instrument for taking the altitude of the sun or stars and for the solution of other problems in astronomy and navigation: used by Greek astronomers from about 200 b.c. and by Arab astronomers from the Middle Ages until superseded by the sextant.
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Origin of astrolabe
1325–75; Middle English, variant of astrolabie<Medieval Latin astrolabium<Late Greek astrolábion,Greek astrolábon (neuter of astrolábos, adj. used as noun), equivalent to ástro(n) star + lab- (variant stem of lambánein to take, seize) + -on neuter suffix
OTHER WORDS FROM astrolabe
as·tro·lab·i·cal [as-truh-lab-i-kuhl, -ley-bi-], /ˌæs trəˈlæb ɪ kəl, -ˈleɪ bɪ-/, adjectiveWords nearby astrolabe
astrogeology, astroglia, astrograph, astroid, astrol., astrolabe, astrology, astromancy, astrometeorology, astrometric binary, astrometry
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for astrolabe
British Dictionary definitions for astrolabe
astrolabe
/ (ˈæstrəˌleɪb) /
noun
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 deviceCompare sextant
Word Origin for astrolabe
C13: via Old French and Medieval Latin from Greek, from astrolabos (adj), literally: star-taking, from astron star + lambanein to take
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for astrolabe
astrolabe
[ ăs′trə-lāb′ ]
An ancient instrument used widely in medieval times by navigators and astronomers to determine latitude, longitude, and time of day. The device employed a disk with 360 degrees marked on its circumference. Users took readings from an indicator that pivoted around the center of the suspended device like the hand of a clock. The astrolabe was replaced by the sextant in the 18th century.
The American Heritage® Science Dictionary
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