noun🔗Shareआदिग्रहAn 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"The astronomers believe a protoplanet, about the size of our Moon, collided with another one billions of years ago, eventually forming the planet Earth. "खगोलविदों का मानना है कि एक आदिग्रह, जो हमारे चंद्रमा के आकार का था, अरबों साल पहले दूसरे से टकराया, जिससे अंततः पृथ्वी ग्रह का निर्माण हुआ।astronomyspacescienceChat with AIVocabulary GamePractice Reading
