Last Updated
：2026/01/03
大円
Hiragana
だいえん
Noun
Japanese Meaning
球面上でその球の中心を通る平面と球面との交わりによってできる円。地球儀上では赤道や本初子午線とその対蹠線を結ぶ線など。航海や航空の最短経路を示す。
Easy Japanese Meaning
球のまんなかをとおる大きなえん。地球では赤道などのいちばん大きなえん。
Chinese (Simplified) Meaning
球面上的最大圆（与球心同心，半径等于球半径） / 导航或测地中所指的球面大圆
Chinese (Traditional) Meaning
球面上的最大圓 / 圓心與球心重合的圓 / 通過球心的平面與球面相交所得的圓
Korean Meaning
구의 중심을 지나는 평면이 구를 절단해 생기는 최대의 원 / 지구 등 구체에서 두 지점 사이 최단 경로가 놓이는 원(대권)
Vietnamese Meaning
đường tròn lớn (trên mặt cầu) / giao tuyến của mặt cầu với mặt phẳng đi qua tâm
Sense（1）
a great circle
（ canonical ）
（ romanization ）
（ romanization ）
（ hiragana historical ）
（ hiragana ）
Quizzes for review
See correct answer
The airplane flew as if drawing a great circle of the earth.
The airplane flew as if drawing a great circle of the earth.
See correct answer
地球の大円を描くように飛行機が飛んでいきました。
Japanese - English
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