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Noun: spiral galaxy
  1. A galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the centre
    - spiral nebula

Derived forms: spiral galaxies

Type of: extragalactic nebula, galaxy

Encyclopedia: Spiral galaxy

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spiny-leafed
spiny-leaved
spiny-stemmed
spiracle
spiracular
spiraea
Spiraea
Spiraea prunifolia
spiral
spiral bandage
spiral galaxy
spiral nebula
spiral notebook
spiral ratchet screwdriver
spiral spring
spiraling
spiralling
spirally
spiral-shelled
spirant
Spiranthes