solar system
noun/ˈsəʊlə sɪstəm/
/ˈsəʊlər sɪstəm/
- the solar system[singular] the sun and all the planets that move around itTopics Spaceb2
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- [countable] any group of planets that all move around the same star
- We don’t know how many solar systems there are in each galaxy.
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solar system