| NOUN | object | planetesimal | one of many small solid celestial bodies thought to have existed at an early stage / stage in the development of the solar system |
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| Meaning | One of many small solid celestial bodies thought to have existed at an early stage / stage in the development of the solar system. | |
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| Broader | celestial body, heavenly body | natural objects visible in the sky |
| Spanish | planetesimal | |
| Catalan | planetesimal | |
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