象しょう限げん儀ぎしょうげんぎMeanings1nounquadrant (astronomical instrument)A historical astronomical instrument used for measuring angles up to 90 degrees, often in navigation and astronomy.象しょう限げん儀ぎは、天てん体たいの高こう度どを測はかるのに使つかわれた。The quadrant was used to measure the altitude of celestial bodies.
