An instrument for making angular measurements, esp. of the altitude of celestial or distant terrestrial objects, consisting of a graduated arc…
| 单词 | θ1418 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > measuring altitude > [noun] > quadrant or sextant > sextant (2) sextant1628 An instrument for making angular measurements, esp. of the altitude of celestial or distant terrestrial objects, consisting of a graduated arc… ham-bone1938 A sextant. Naval slang. |
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