Definition, Meaning & Synonyms
planetesimal
noun
/ˌplæn.ɪˈtɛs.ɪ.məl/
Definition
A small body that could form a planet through accretion in the early solar system.
Examples
- Scientists believe that planetesimals played a crucial role in the development of the Earth.
- The collision of planetesimals can lead to the formation of larger planetary bodies.
Meaning
In the context of planetary formation, planetesimals are the building blocks that coalesce to form larger celestial bodies like planets and moons.
Synonyms
- Cosmic debris
- Celestial body
- Asteroids
