JLPT N1 • KANJI

ecliptic plane

Practice Question

🎉 Explanation

English Explanation

All kanji use their On'yomi: 黄 (コウ), 道 (ドウ), 面 (メン). おうどうめん incorrectly uses the Kun'yomi おう for 黄, which is common but not for this specific astronomical term. こうとうめん misreads 道. It refers to the plane of Earth's orbit around the Sun.

日本語解説

黄 (コウ)、道 (ドウ)、面 (メン) は全て音読みです。「おうどうめん」は黄の訓読み「おう」を誤用。地球が太陽の周りを公転する軌道を含む平面を指す天文学用語です。

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