spiral galaxy English

Meaning spiral galaxy meaning

What does spiral galaxy mean?

— noun a galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center

What other words have the same or similar meaning as spiral galaxy?

spiral nebula

How do I use spiral galaxy in a sentence?

The Milky Way is called a spiral galaxy because it has long arms which spin around like a giant pinwheel.

That was a first indication that our Galaxy has indeed spiral arms of hydrogen gas.

spiral | galaxy