major planet

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(astronomy) Any of the 8 celestial bodies which orbit the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune (a celestial body that fits the 2006 IAU definition of planet).

このボタンはなに？

Mars, often considered a major planet, has fascinated astronomers for centuries.

詳細

意味（1）

(astronomy) Any of the 8 celestial bodies which orbit the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune (a celestial body that fits the 2006 IAU definition of planet).

意味（2）

(astronomy) Any planet that is significantly larger and more massive than Earth, containing large amounts of hydrogen and helium, such as Jupiter and Neptune.

major planets （ plural ）