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the Crab Nebula, photographed by the Hubble Space Telescope in 2005


n. pl. neb·u·lae (-lē′) or neb·u·las
1. Astronomy
a. A diffuse cloud of interstellar dust or gas or both, visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident light or emits its own light.
b. A galaxy. No longer in technical use.
2. Medicine
a. A cloudy spot on the cornea.
b. A liquid preparation for use in a nebulizer.

[Middle English nebule, cloud, mist, from Latin nebula; see nebh- in Indo-European roots.]

neb′u·lar adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.nebular - of or relating to or resembling a nebula; "the nebular hypothesis of the origin of the solar system"
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
2.nebular - resembling a cloud
cloudy - full of or covered with clouds; "cloudy skies"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
The poem swung in majestic rhythm to the cool tumult of interstellar conflict, to the onset of starry hosts, to the impact of cold suns and the flaming up of nebular in the darkened void; and through it all, unceasing and faint, like a silver shuttle, ran the frail, piping voice of man, a querulous chirp amid the screaming of planets and the crash of systems.
It must be, if the nebular hypothesis has any truth, older than our world; and long before this earth ceased to be molten, life upon its surface must have begun its course.
I had about deduced from certain astronomic phenomena I have had under minute observation during the past several tropic nights an entirely new nebular hypothesis which will unquestionably startle the scientific world.
I knew that you could not say to yourself'stereotomy' without being brought to think of atomies, and thus of the theories of Epicurus; and since, when we discussed this subject not very long ago, I mentioned to you how singularly, yet with how little notice, the vague guesses of that noble Greek had met with confirmation in the late nebular cosmogony, I felt that you could not avoid casting your eyes upward to the great nebula in Orion, and I certainly expected that you would do so.
The S4 comes in different colours such as Nebular Blue, Space Grey and Twilight Purple and is available for sale at any authorised Infinix retail shop or online store at Sh15,999.
Of the 50 cases of suppurative keratitis studied in this series, 9 cases ended up with nebular, 27 cases with macular and 9 cases with leucomatous opacity with vascularisation.
"This is a clear indication that there is nebular neon in the deep mantle," Williams said.
Nebular hydrogen, which contains less deuterium and is lighter than asteroidal hydrogen, dissolved into the molten iron of the magma ocean.
The stars were drawn from a filterless view, while filters were used for teasing out nebular detail.
"Space is obviously mostly this kind of black void, and you're traveling searching for objects, or searching for landing areas, in this expanse that is mostly completely nebular, and then on top of that you are in these kind of flying tin cans," he told reporters.
"This confirms that Y-793261 preserves minerals and textures of its nebular origin, providing us with records of the early solar system."