Protoplanet

Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. 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
    • Word Usage
    "As it is, Vesta is 330 miles across and is classified as a "protoplanet.""
    Form
    protoplanetary   
     
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