NEBULOSITY • DICCIONARIO INGLES.COM • Definition of Nebulosity

... fundamental proposition of Evolution. That proposition is, that the whole world, living and not living, is the result of the mutual interaction, according to definite laws, of the forces possessed by the molecules of which the primitive nebulosity of the universe was composed. If this be true, it is no less certain that the existing world lay, potentially, in the cosmic vapour; and that a sufficient intelligence could, from a knowledge of the properties of the ...

— Critiques and Addresses • Thomas Henry Huxley