Definition of spiral galaxy Spiral galaxy

spi•ral gal•ax•y

We found 2 definitions of spiral galaxy from 2 different sources.

What does spiral galaxy mean?

Noun
spiral galaxy - a galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center
		spiral nebula
		extragalactic nebula, galaxy a splendid assemblage (especially of famous people)

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spiral galaxy (Noun)
A galaxy having a number of arms of younger stars that spiral out from the centre containing older ones.

spiral galaxy in sign language