The Newtonian system of physics; (in extended use) a philosophical approach based on that of Newton, or formed by analogy with his system of…

Belief in the Ptolemaic system of astronomy.

the hypothesis (originally propounded by Kant in 1755 and elaborated by Herschel and Laplace) that the solar system originated as a diffuse…

a theory of the origin of planets, a star system, etc., based on the formation and evolution of a nebula; spec. = nebular hypothesis n.

belief in the Copernican theory; the theory itself.

= nebular hypothesis n. at nebular, adj. compounds.

= nebular hypothesis n. at nebular, adj. compounds.

in the same sense.

The (controversial) theories of cosmology and history propounded by Immanuel Velikovsky (1895–1979), Russian-born psychologist, based on the…