noun
: any explanation of the origin of the earth that involves the hypothesis of gradual growth by the gravitational infall of solid bodies (as asteroids, planetesimals, or meteorites) — compare planetesimal hypothesis
noun
: any explanation of the origin of the earth that involves the hypothesis of gradual growth by the gravitational infall of solid bodies (as asteroids, planetesimals, or meteorites) — compare planetesimal hypothesis
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012