水すい金きん地ち火か木もく土ど天てん海かい

noun

mnemonic for the solar system planets

A mnemonic phrase listing the planets in order from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Used primarily in educational contexts.

• 小しょう学がく生せいのとき、「水すい金きん地ち火か木もく土ど天てん海かい」で惑わく星せいの順じゅん番ばんを覚おぼえた。

  In elementary school, I memorized the order of the planets with 'Suikin Chikamoku Dotenkai'.