planetesimal hypothesis

noun

Definition of planetesimal hypothesis

: a hypothesis in astronomy: the planets have evolved by aggregation from planetesimals

Examples of planetesimal hypothesis in a Sentence

Recent Examples on the Web So far, the planetesimal hypothesis seems to be the only explanation that fits the spectra seen. John Wenz, Popular Mechanics, 4 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'planetesimal hypothesis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of planetesimal hypothesis

1904, in the meaning defined above

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Time Traveler for planetesimal hypothesis

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The first known use of planetesimal hypothesis was in 1904

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Dictionary Entries Near planetesimal hypothesis

planetesimal

planetesimal hypothesis

planetoid

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Cite this Entry

“Planetesimal hypothesis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/planetesimal%20hypothesis. Accessed 30 Jun. 2022.

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