active galaxy
Noun. (galaxy) A galaxy where a significant fraction of the energy output is not emitted by the normal components of a galaxy.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.