nebula


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

neb·u·la

 (nĕb′yə-lə)
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.

nebula

(ˈnɛbjʊlə)
n, pl -lae (-ˌliː) or -las
1. (Astronomy) astronomy a diffuse cloud of particles and gases (mainly hydrogen) that is visible either as a hazy patch of light (either an emission or a reflection nebula) or an irregular dark region against a brighter background (dark nebula). Compare planetary nebula
2. (Pathology) pathol
a. opacity of the cornea
b. cloudiness of the urine
3. (Medicine) any substance for use in an atomizer spray
[C17: from Latin: mist, cloud; related to Greek nephétē cloud, Old High German nebul cloud, Old Norse njól night]
ˈnebular adj

neb•u•la

(ˈnɛb yə lə)

n., pl. -lae (-ˌli, -ˌlaɪ)
-las.
1.
a. a cloud of interstellar gas and dust.
b. (formerly) any distant celestial object that appears hazy or fuzzy.
2. Pathol.
a. a faint opacity in the cornea.
b. cloudiness in the urine.
[1655–65; < Latin: a mist, vapor, cloud; akin to Greek nephélē cloud, German Nebel fog, haze]
neb′u•lar, adj.

neb·u·la

(nĕb′yə-lə)
Plural nebulae (nĕb′yə-lē′) or nebulas
A thinly spread cloud of interstellar gas and dust. It will appear as a bright patch in the night sky if it reflects light from nearby stars, emits its own light, or re-emits ultraviolet radiation from nearby stars as visible light. If it absorbs light, the nebula appears as a dark patch. In dark nebulae, stars form from clumps of hydrogen gas. See more at star.

nebula


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A dust and gas cloud formed in space that is a source of stars. Sometimes used to refer to other galaxies, when their stars appear indistinct.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nebula - a medicinal liquid preparation intended for use in an atomizernebula - a medicinal liquid preparation intended for use in an atomizer
formulation, preparation - a substance prepared according to a formula; "the physician prescribed a commercial preparation of the medicine"
2.nebula - cloudiness of the urine
symptom - (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
3.nebula - an immense cloud of gas (mainly hydrogen) and dust in interstellar space
diffuse nebula, gaseous nebula - a cluster of stars within an intricate cloud of gas and dust
planetary nebula - a nebula that was once thought to be a star with its planets but is now thought to be a very hot star surrounded by an expanding envelope of ionized gases that emit a fluorescent glow because of intense radiation from the star
cloud - any collection of particles (e.g., smoke or dust) or gases that is visible
4.nebula - (pathology) a faint cloudy spot on the cornea
maculation, patch, speckle, dapple, fleck, spot - a small contrasting part of something; "a bald spot"; "a leopard's spots"; "a patch of clouds"; "patches of thin ice"; "a fleck of red"
pathology - the branch of medical science that studies the causes and nature and effects of diseases
Translations
mlhovina
kaasusumunebulatähtisumu
星雲
nebula

nebula

[ˈnebjʊlə] N (nebulas or nebulae (pl)) [ˈnebjʊliː]nebulosa f

nebula

[ˈnɛbjʊlə] nnébuleuse f

nebula

n pl <-e>
(Astron) → Nebel m, → Nebelfleck m
(Med) → Trübung f

nebula

[ˈnɛbjʊlə] nnebulosa

neb·u·la

n. nébula, opacidad ligera de la córnea.
References in classic literature ?
Here is to be seen at work that powerful telescope which enabled Bond to resolve the nebula of Andromeda, and Clarke to discover the satellite of Sirius.
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.
Some of the places we can see the most unusual shapes is in a nebula, a large cloud of dust and gas where stars often form as material condenses.
The most famous and best understood of these enigmatic jewels is Hubble's Variable Nebula (NGC 2261), which is the peculiar nebula associated with R Monocerotis (R Mon).
Astronomers trained the iconic telescope on this colorful feature, called the Bubble Nebula, or NGC 7635.
Washington, Oct 25 ( ANI ): The Boomerang Nebula is the coldest known object in the Universe at a cosmologically crisp one degree Kelvin (minus 458 degrees Fahrenheit), scientists have claimed.
Nebula Awards Showcase 2013 gathers another powerful, annually-issued collection of Nebula Awards winners and is a fine collection of works gathered by an author who is herself a two-time Nebula Award winner.
25 March 2013 - Swedish private equity group Ratos AB (STO:RATO B) on Monday said it would buy around 75% in Finnish cloud services provider Nebula Oy from majority owner Rite Ventures and management, in a deal which gives the target an enterprise value of EUR82.
The Nebula AX700 is a single seater ATV with a 686cc liquid-cooled EFI engine and a 21-liter fuel capacity.
Gyulbudaghian's Nebula is one of a small number of variable nebulae which the BAA Deep Sky Section has been monitoring for several years.
This is the great Orion Nebula, a vast star-forming region and the showpiece of the winter sky.