Dictionary.com

astrolabe

[ as-truh-leyb ]
/ ˈæs trəˌleɪb /
Save This Word!

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and navigation: used by Greek astronomers from about 200 b.c. and by Arab astronomers from the Middle Ages until superseded by the sextant.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

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-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use astrolabe in a sentence

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for astrolabe

astrolabe
[ ăstrə-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 Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK