Galaxy

n. system of stars held together by gravity; gathering of brilliant or glamorous people

A galaxy (from the Greek root γαλαξίας, meaning "milky", a reference to our own Milky Way) is a massive, gravitationally bound system consisting of stars, an interstellar medium of gas and dust, and dark matter. Typical galaxies range from dwarfs with as few as ten million (107) stars up to giants with one trillion (1012) stars, all orbiting a common center of mass. Galaxies can also contain many multiple star systems, star clusters, and various interstellar clouds.
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Noun
1. a splendid assemblage (especially of famous people)
(hypernym) collection, aggregation, accumulation, assemblage
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, wandflower, beetleweed, coltsfoot, Galax urceolata
(hypernym) herb, herbaceous plant
(member-holonym) genus Galax
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) extragalactic nebula
(hypernym) collection, aggregation, accumulation, assemblage
(hyponym) spiral galaxy, spiral nebula
(member-holonym) universe, existence, creation, world, cosmos, macrocosm
(member-meronym) star
(substance-meronym) cosmic dust
(classification) astronomy, uranology

(n.)
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. The term has recently been used for remote clusters of stars.
  

(n.)
A splendid assemblage of persons or things.
  

<language> An extensible language in the vein of EL/1 and RCC.
["Introduction to the Galaxy Language", Anne F. Beetem et al, IEEE Software 6(3):55-62].
(1995-12-09)