Definition of self-gravitation in English:

self-gravitation

noun

Astronomy
  • The gravitational forces acting among the components of a massive body.

    • ‘Since gravitation is a very weak force compared to electrical or nuclear interactions, small objects that are normally encountered are not held together by self-gravitation.’
    • ‘The rapid expansion would prevent islands of material separating out from the global expansion and becoming bound by their own self-gravitation.’