| 单词 | astrolabe |
| 释义 | astrolabe —astrolabical /as'treuh lab"i keuhl, -lay"bi-/, adj. /as"treuh layb'/, n. 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and navigation: used by Greek astronomers from about 200 B.C. and by Arab astronomers from the Middle Ages until superseded by the sextant. [1325-75; ME, var. of astrolabie < ML astrolabium < LGk astrolábion, Gk astrolábon (neut. of astrolábos, adj. used as n.), equiv. to ástro(n) STAR + lab- (var. s. of lambánein to take, seize) + -on neut. suffix] |
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