spiral galaxy

== English == === Pronunciation === === Noun === spiral galaxy (plural spiral galaxies) (astronomy) A galaxy consisting of a number of arms of younger stars that spiral out from the center containing older ones. Synonym: whirlpool galaxy ==== Hypernyms ==== galaxy ==== Hyponyms ==== ==== Derived terms ==== ==== Translations ==== ==== See also ==== elliptical galaxy lenticular galaxy irregular galaxy ==== References ==== spiral galaxy on Wikipedia.Wikipedia