major planet
Appearance
English
[edit]Noun
[edit]major planet (plural major planets)
- (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).
- (astronomy) Any planet that is significantly larger and more massive than Earth, containing large amounts of hydrogen and helium, such as Jupiter and Neptune.[1]
Synonyms
[edit]Antonyms
[edit]- (antonym(s) of “larger than Earth”): minor planet (smaller than Earth (in the Solar System))
- (antonym(s) of “2006 IAU definition of planet”): dwarf planet (a planet that does not fit the 2006 IAU definition of planet (i.e. Pluto))