Noun
a global cluster in the constellation Centaurus
Source: WordNet47 Tucanae – the second most luminous globular cluster in the Milky Way, after Omega Centauri Core-collapse is thought to occur when the more massive stars in a globular cluster encounter their less massive companions. Source: Internet
This has prompted suspicion that Omega Centauri was the core of a dwarf galaxy that had been absorbed by the Milky Way. Source: Internet