柯林斯詞典sextant /?s?kst?nt/ (sextants) 1. N-COUNT A sextant is an instrument used for measuring angles, for example between the sun and the horizon, so that the position of a ship or aeroplane can be calculated. 六分儀; 用於測(cè)算船衹或飛機(jī)位置的儀器 返回 sextant劍橋詞典a device used on a ship or aircraft for measuring angles , such as those between stars or that between the sun and the earth , in order to discover the exact position of the ship or aircraft （船舶或飛機(jī)精確定位用的）六分儀 返回 sextant