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, "Scientists Think They've Found a Dead Planetary Core Orbiting a Dead Star," 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.

Keep scrolling for more

Learn More about planetesimal hypothesis

Dictionary Entries near planetesimal hypothesis

planet differential

planetesimal hypothesis

plane-tree family

Statistics for planetesimal hypothesis

Last Updated

15 Apr 2019

Look-up Popularity

Time Traveler for planetesimal hypothesis

The first known use of planetesimal hypothesis was in 1904

See more words from the same year

Comments on planetesimal hypothesis

What made you want to look up planetesimal hypothesis? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

resurrection

an act or instance of returning to life

Test Your Vocabulary

Words from Greek and Latin Quiz

Which of the following months comes from a Latin word for “ten”?

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ