- nebulous or nebular matter.
- a nebulous form, shape, or mass.
- the state or condition of being nebulous.
Origin of nebulosity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nebulosity
The nebulosity of the ten-foot can be resolved into stars by the twenty-foot, and so on.Sir William Herschel: His Life and Works
Edward Singleton Holden
Prof. Barnard adds that the nebulosity is easily visible in a 12-inch telescope.Astronomical Curiosities
J. Ellard Gore
Speculated concerning the Milky Way, the nebulosity of stars, the origin and growth of solar systems.Pioneers of Science
The convolutions of its spiral are filled with numerous starlike condensations, themselves engulfed in nebulosity.Astronomy
It is the nebulosity out of which the whole came and into which all is ultimately occluded.The Mystery of Space
Robert T. Browne
- the state or quality of being nebulous
- astronomy a nebula
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for nebulosity
1738, from French nébulosité, from Late Latin nebulositatem (nominative nebulositas), from Latin nebulosus, from nebula (see nebula).
Online Etymology Dictionary, © 2010 Douglas Harper