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.
(plural globular clusters)
- (astronomy) a densely-packed spherical star cluster containing thousands to millions of stars
Typically this is applied to very old clusters, young star clusters of this form may be referred to as super star clusters instead of as globulars.