: an instrument for measuring angular distances used especially in navigation to observe altitudes of celestial bodies (as in ascertaining latitude and longitude)
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Though his crew has access to GPS data, satellite internet and radar, the captain still makes use brass compasses, sextants and the ship’s great wheel.—Joe Sills, Forbes, 19 Jan. 2025 Black Spy stares at the moon through an elaborate sextant, adjusting various settings and making mental calculations, finally drawing an X on the ground with a compass before setting the bucket down.—Gyasi Hall, Longreads, 12 Sep. 2023 But otherwise, the astronauts’ situation was similar enough to that of Earthly sailors to use similar technology, which means instead of a marine sextant, astronauts used a space sextant.—Amy Shira Teitel, Discover Magazine, 15 June 2019 The sextant used by the captain of the rescue ship Carpathia sold for just under $97,000 in 2016.—James Rogers, Fox News, 1 Nov. 2020 See all Example Sentences for sextant
Word History
Etymology
New Latin sextant-, sextans sixth part of a circle, from Latin, sixth part, from sextus sixth
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