Protostar (noun) Definition, Meaning & Examples

noun Astronomy.
  1. an early stage in the evolution of a star, after the beginning of the collapse of the gas cloud from which it is formed, but before sufficient contraction has occurred to permit initiation of nuclear reactions at its core.
noun
  1. a cloud of interstellar gas and dust that gradually collapses, forming a hot dense core, and evolves into a star once nuclear fusion can occur in the core
    Protostar (noun) Definition, Meaning & Examples

    More Definitions