Definition of astrolabe noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈæstrəleɪb//
; NAmE NAmE//ˈæstrəleɪb//
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a device used in the past for measuring the distances of stars, planets etc. and for calculating the position of a ship Word Originlate Middle English: from Old French astrelabe, from medieval Latin astrolabium, from Greek astrolabon, neuter of astrolabos ‘star-taking’.
See the Oxford Advanced American Dictionary entry: astrolabe