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nebula    音标拼音: [n'ɛbjələ]
n. 星云,云翳

星云,云翳

nebula
n 1: a medicinal liquid preparation intended for use in an
atomizer
2: cloudiness of the urine
3: an immense cloud of gas (mainly hydrogen) and dust in
interstellar space
4: (pathology) a faint cloudy spot on the cornea

Nebula \Neb"u*la\ (n[e^]b"[-u]*l[.a]), n.; pl. {Nebulae}
(n[e^]b"[-u]*l[=e]). [L., mist, cloud; akin to Gr. nefe`lh,
ne`fos, cloud, mist, G. nebel mist, OHG. nebul, D. nevel,
Skr. nabhas cloud, mist. Cf. {Nebule}.]
1. (Astron.) A faint, cloudlike, self-luminous mass of matter
situated beyond the solar system among the stars. The term
was originally applied to any diffuse luminous region.
Now, technically, it is applied to interstellar clouds of
dust and gases ({diffuse nebula}). However distant
galaxies and very distant star clusters often appear like
them in the telescope, such as the {spiral nebula} in
Andromeda, known now to be a distant galaxy.
[1913 Webster PJC]

2. (Med.)
(a) A white spot or a slight opacity of the cornea.
(b) A cloudy appearance in the urine. [Obs.]
[1913 Webster]

19 Moby Thesaurus words for "nebula":
Black Magellanic Cloud, Crab Nebula, Gegenschein,
bright diffuse nebula, coalsack, counterglow, dark cloud,
dark nebula, diffuse nebula, dust cloud, gaseous nebula,
nebula of Lyra, nebular hypothesis, nebulosity, nebulous stars,
planetary nebula, ring nebula, the Coalsack, zodiacal light


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  • Nebula - Wikipedia
    Nebula True color image of the Trifid Nebula, showing complex gas and plasma structure A nebula (Latin for 'cloud, fog'; [1] pl nebulae or nebulas) [2][3][4][5] is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral, or molecular hydrogen and also cosmic dust
  • Nebula
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  • What Is a Nebula? | NASA Space Place – NASA Science for Kids
    A nebula is a giant cloud of dust and gas in space Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova Other nebulae are regions where new stars are beginning to form
  • Log In Nebula
    “This was exactly what I needed The guidance to trust myself and what I believe The response was direct in the way I need, especially with who I am as a person ”
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    Nebula is smart, thoughtful videos, podcasts, and classes from your favorite creators
  • Nebula | Psychic Reading Online - Find Your Psychic Reader
    ⭐ If you're looking for cosmic guidance, Nebula psychic readers will answer every question you might have 💫 Learn what's written in the stars
  • Nebula: Definition, location and variants - Space
    Nebula are giant clouds of interstellar gas that play a key role in the life-cycle of stars
  • Hubble’s Nebulae - NASA Science
    The Orion Nebula is a picture book of star formation, from the massive, young stars shaping the nebula to the pillars of dense gas that may be the homes of budding stars The Trapezium resides in the bright central region Ultraviolet light unleashed by these stars carves a cavity in the emission nebula and disrupts the growth of hundreds of smaller stars
  • What Is A Nebula? A Beginner’s Guide - AstronomyShack
    Discover what a nebula is, how nebulae form, the different types of nebulae, and how you can observe famous nebulae in the night sky A beginner's guide for amateur astronomers
  • Nebula | Definition, Types, Size, Facts | Britannica
    Nebula, any of the various tenuous clouds of gas and dust that occur in interstellar space The term was formerly applied to any object outside the solar system that had a diffuse appearance rather than a pointlike image, as in the case of a star This definition, adopted at a time when very





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