from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A roughly spherical, densely packed group of thousands to hundreds of thousands of stars that are gravitationally bound to one another and orbit a galaxy. Most known galaxies are orbited by numerous globular clusters.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy a
spherical star clustercontaining thousands to millions of stars
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