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planetesimal

/,plænɪ'tɛsəməl/

Synonyms of planetesimal Antonyms of planetesimal Examples of planetesimal Usage of planetesimal Parts of planetesimal Definition that contains planetesimal Words sounding like planetesimal Explanation of planetesimal

noun
one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
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type of:
celestial body heavenly body

Definition that contains planetesimal

planetesimal hypothesis (cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimals