单词 | astrolabe |
释义 | astrolabe/ˈastrəleɪb /noun chiefly historical An instrument used to make astronomical measurements, typically of the altitudes of celestial bodies, and in navigation for calculating latitude, before the development of the sextant.Lavanha also studied instruments used in navigation, constructing astrolabes, quadrants and compasses....
OriginLate Middle English: from Old French astrelabe, from medieval Latin astrolabium, from Greek astrolabon, neuter of astrolabos 'star-taking'. |
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