Definition of nebular hypothesis in US English:

nebular hypothesis

(also nebular theory)


  • The theory that the solar and stellar systems were developed from a primeval nebula.

    • ‘Finally, he set forth and briefly responded to the nebular hypothesis for the origin of the earth.’
    • ‘Evolutionists believe that the solar system condensed out of a cloud of gas and dust called a nebula, hence the nebular hypothesis.’
    • ‘The German philosopher Immanuel Kant was the first to propose a scientific model - known as the nebular theory - for the origins of the planetary system.’
    • ‘Pierre Laplace, an open atheist, published his nebular hypothesis in 1796.’
    • ‘First we had the Copernican revolution, then Kant put forward the nebular theory of the evolution of solar systems.’