planetesimal
خرده سیاره، ذرات سیاره ای
معنی و تعریف
۱.
اسم
تعریف:
یکی از بسیاری از اجرام آسمانی جامد کوچک که تصور میشود در مراحل اولیه شکلگیری منظومه شمسی وجود داشتهاند.
one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
مثالها:
- The early solar system was filled with countless planetesimals that collided and merged to form larger planets.
- Astronomers study planetesimals to understand how dust and gas coalesced into the building blocks of planets.