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gal·ax·y
 (g  l   k-s  )
KEY
NOUN:
pl.
gal·ax·ies
-
- Any of numerous large-scale aggregates of stars, gas, and dust that constitute the universe, containing an average of 100 billion (1011) solar masses and ranging in diameter from 1,500 to 300,000 light-years.
Also called
nebula
.
- often
Galaxy
The Milky Way.
- An assembly of brilliant, glamorous, or distinguished persons or things:
a galaxy of theatrical performers.
ETYMOLOGY:
Middle English galaxie, the Milky Way, from Late Latin galaxi s, from Greek, from gala
, galakt-, milk; see melg- in Indo-European roots
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