Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A galaxy that does not have the clearly defined shape and structure of an elliptical, lenticular, or spiral galaxy. Irregular galaxies typically contain large amounts of gas and dust, and their stellar populations are relatively young.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy A
galaxy which is has nospirals and is notelliptical .
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