ALL meanings of planetesimal
plan·e·tes·i·mal
P p - noun planetesimal one of the small celestial bodies that, according to one theory (planetesimal hypothesis) were fused together to form the planets of the solar system. 2
- adjective planetesimal of or relating to a planetesimal or planetesimals. 1
- noun planetesimal any of a number of small bodies formerly thought to have been drawn from the sun by the close passage of a star to the sun, eventually coalescing to form the planets 0
- adjective planetesimal of or relating to planetesimals 0
- noun planetesimal in various theories about the origin of the solar system, any of the small, cold masses of rock or ice that merged to form a planet 0