Protoplanet
Definition, Meaning & Examples
Part of speech noun
Quick meaning: Protoplanet is a noun meaning An astronomical object, approximately the size of the Moon, formed from the mutual gravitational attraction of planetesimals; they are thought to collide with each other and slowly form planets.
Meaning
An astronomical object, approximately the size of the Moon, formed from the mutual gravitational attraction of planetesimals; they are thought to collide with each other and slowly form planets.
Example Sentences
Tyrix, one of the largest objects in Thal's asteroid belt, is a metallic asteroid with an iron-nickel core under a rocky olivine mantle. It is possibly a remnant protoplanet prevented from forming into anything bigger by gravitational disturbances from Xerceo.
Word Forms
- protoplanets
Related Words
Related dictionary entries include planetesimal, planemo, planetoid, planet, mesoplanet, ring.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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