the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to nebulæ; of the nature of, or resembling, a nebula.
The Century Dictionary and Cyclopedia
Like a nebula; cloudy.
Pertaining or relating to a nebula.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to or resembling a nebula
adj. resembling a cloud
Word Usage
"Such is, in fact, the doctrine of the origin of our system which has been advanced in that celebrated speculation known as the nebular theory of Laplace."