WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint: double-click any word to get it searched!

	Enter your search terms Submit search form
	Web www.wordnet-online.com

Definitions from WordNet

Definitions from the Web

Planetesimal

Noun (Astronomy)

Definition: A small celestial body that forms during the early stages of the creation of a planetary system, typically composed of rock and metallic elements.

Example sentence: The planetesimals in the early solar system collided and merged to form larger celestial bodies.

Related products on Amazon: Books about Planetesimals

Noun (Geology)

Definition: A small solid particle, often composed of minerals, that accumulates in the process of planet formation within a protoplanetary disk.

Example sentence: The study of planetesimals in the geology field provides valuable insights into the formation of planets.

Related products on Amazon: Geology books on Planetesimals