| Main Entry: | solar system |
| Part of Speech: | noun |
| Definition: | planets orbiting Sun |
Synonyms: |
Copernican system, Earth, Jupiter, Mars, Mercury, Neptune, Pluto, Saturn, Uranus, Venus, heliocentric system, planetary system |
| Main Entry: | terrestrial planet |
| Part of Speech: | noun |
| Definition: | major planet |
Synonyms: |
Earth, Mars, Mercury, Venus, inner planet |