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galaxy    音标拼音: [g'æləksi]
n. 星系,银河系;一群出色的人物

星系,银河系;一群出色的人物

galaxy
n 1: a splendid assemblage (especially of famous people)
2: tufted evergreen perennial herb having spikes of tiny white
flowers and glossy green round to heart-shaped leaves that
become coppery to maroon or purplish in fall [synonym: {galax},
{galaxy}, {wandflower}, {beetleweed}, {coltsfoot}, {Galax
urceolata}]
3: (astronomy) a collection of star systems; any of the billions
of systems each having many stars and nebulae and dust;
"`extragalactic nebula' is a former name for `galaxy'" [synonym:
{galaxy}, {extragalactic nebula}]

Galaxy \Gal"ax*y\, n.; pl. {Galaxies}. [F. galaxie, L. galaxias,
fr. Gr. ? (sc. ? circle), fr. ?, ?, milk; akin to L. lac. Cf.
{Lacteal}.]
[1913 Webster]
1. (Astron.)

1. The Milky Way, that luminous tract, or belt, which is seen
at night stretching across the heavens, and which is
composed of innumerable stars, so distant and blended as
to be distinguishable only with the telescope. --Nichol.
[1913 Webster]

2. A very large collection of stars comparable in size to the
Milky Way system, held together by gravitational force and
separated from other such star systems by large distances
of mostly empty space. Galaxies vary widely in shape and
size, the most common nearby galaxies being over 70,000
light years in diameter and separated from each other by
even larger distances. The number of stars in one galaxy
varies, and may extend into the hundreds of billions.
[PJC]

3. A splendid or impressive assemblage of persons or things;
as, a galaxy of movie stars.
[1913 Webster PJC] Galban

74 Moby Thesaurus words for "galaxy":
Milky Way, Via Lactea, army, barred spiral, barred spiral galaxy,
big name, celebrity, cluster, cohue, constellation, cosmic noise,
crowd, crush, cynosure, deluge, figure, flock, flood, folk hero,
galactic circle, galactic cluster, galactic coordinates,
galactic latitude, galactic longitude, galactic nebula,
galactic noise, galactic pole, great man, heap, hero, heroine,
horde, host, idol, immortal, important person, island universe,
jam, legion, lion, luminaries, luminary, man of mark, mass,
master spirit, mob, multitude, name, notability, notable, panoply,
person of note, personage, pleiad, pop hero, popular hero,
popular idol, press, public figure, rabble, rout, ruck,
social lion, somebody, spate, spheroidal galaxy, spiral,
spiral galaxy, spiral nebula, star, supergalaxy, superstar, throng,
worthy

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  • Galaxy - Wikipedia
    A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity [1] [2] The word is derived from the Greek galaxias (γαλαξίας), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System
  • Galaxy | Definition, Formation, Types, Properties, Facts | Britannica
    galaxy, any of the systems of stars and interstellar matter that make up the universe Many such assemblages are so enormous that they contain hundreds of billions of stars
  • What Is a Galaxy? | NASA Space Place – NASA Science for Kids
    What Is a Galaxy? The Short Answer: A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity We live on a planet called Earth that is part of our solar system But where is our solar system? It’s a small part of the Milky Way Galaxy
  • Galaxies - NASA Science
    Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity The largest contain trillions of stars and can be more than a million light-years across The smallest can contain a few thousand stars and span just a few hundred light-years
  • What’s a galaxy? All you need to know - EarthSky
    A galaxy is a vast island of gas, dust and stars in an ocean of space Typically, galaxies are millions of light-years apart Galaxies are the building blocks of our universe
  • What Is a Galaxy? - Scientific American
    Very generally speaking, galaxies are tens of thousands to hundreds of thousands of light-years across and have millions to several trillions of stars Our Milky Way, for example, is about
  • What is a Galaxy? - sciencenewstoday. org
    The Basics: What Is a Galaxy, Really? At its core, a galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, interstellar gas, dust, and dark matter These components are woven together by gravity, forming complex and beautiful structures that can span tens of thousands to hundreds of thousands of light-years
  • What Are Galaxies? (With Understandable Details) - Owlcation
    A galaxy is an astronomical unit composed of a cluster of stars, planets, and, in most or possibly all cases, a supermassive black hole Indeed, other material also makes up the galaxy, including anything clustered about and gravitationally bound to a supermassive black hole This includes gas clouds and even dark matter
  • Galaxies—facts and information | National Geographic
    Galaxies are sprawling systems of dust, gas, dark matter, and anywhere from a million to a trillion stars that are held together by gravity Nearly all large galaxies are thought to also
  • Galaxy Types - Science@NASA
    Scientists sometimes categorize galaxies based on their shapes and physical features Other classifications organize galaxies by the activity in their central regions – powered by a supersized black hole – and the angle at which we view them





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