The Collaborative International Dictionary
Nebulosity \Neb`u*los"i*ty\, n. [L. nebulositas: cf. F. n['e]bulosit['e]]
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The state or quality of being nebulous; cloudiness; haziness; mistiness; nebulousness.
The nebulosity . . . of the mother idiom.
--I. Disraeli. -
(Astron.)
The stuff of which a nebula is formed.
A nebula.
Douglas Harper's Etymology Dictionary
1738, from French nébulosité, from Late Latin nebulositatem (nominative nebulositas), from Latin nebulosus, from nebula (see nebula).
Wiktionary
n. (context meteorology astronomy English) the characteristic of being nebulous; cloudiness (measured in octas).
Usage examples of "nebulosity".
Moreover, so far as esthetic theory was involved, if the psychic emanations of human creatures be grotesque distortions, what coherent representation could express or portray so gibbous and infamous a nebulosity as the specter of a malign, chaotic perversion, itself a morbid blasphemy against nature?
The overhead screen depicted the Alnitak region, the vast roiling clouds, the dark mass of the Horsehead, the brilliant nebulosity NGC2024, the giant star itself, and the sweeping rings of the Jovian world.
In the vision screens the hazy nebulosities, the distorted, pulsing spirals, were replaced by hard, bright stars.
Klia reached into his mind, saw a brightness there obscured by dark nebulosities, and with a gentle breath of persuasion, another sign of her returning strength, she blew the clouds away.
Clinging to the membrane in a curve, as though queued on the inside of a bubble, were five or six round nebulosities that glowed dull orange like dying suns.
Rosette and seahorse and seething cloud, nebulosities on the brink of determinate form, cardioid traceries of the heart the patterns wrapped around him until he became a fractal tapestry, alive, every element in constant motion.
Murky gloamings and the weird nebulosities of Sunside bogs had never frightened me.
Some were in open space, some were embedded in nebulosity, surrounded by glowing molecular clouds.