major planet

/M EY1 JH ER0 P L AE0 N AH0 T/
noun
  1. 1

    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).

  2. 2

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

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Source: https://en.wiktionary.org/wiki/major%20planet