spiral galaxy
noun
: a galaxy exhibiting a central nucleus or barred structure from which extend curved arms of higher luminosity
called also spiral nebula
Examples of spiral galaxy in a Sentence
Recent Examples on the Web
Also known as Andromeda, the Milky Way’s most immediate neighbor is about 2.5 million light-years away, and provides an excellent option for studying how spiral galaxies form and evolve over time.
—
Andrew Paul, Popular Science, 26 June 2025
The spiral galaxy is home to Earth and hundreds of billions of stars spanning more than 100,000 light-years, NASA said.
—Hannah Poukish, Sacbee.com, 6 June 2025
The Milky Way is a spiral galaxy, and our solar system lies on its outer fringes.
—Stephanie Vermillion, Outside Online, 3 July 2025
Blue and red stars shine brightly, while nearby blue spiral galaxies and distant red galaxy groups can also be seen.
—Eric Lagatta, USA Today, 25 June 2025
See All Example Sentences for spiral galaxy
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Andrew Paul, Popular Science, 26 June 2025
The spiral galaxy is home to Earth and hundreds of billions of stars spanning more than 100,000 light-years, NASA said.
—Hannah Poukish, Sacbee.com, 6 June 2025
The Milky Way is a spiral galaxy, and our solar system lies on its outer fringes.
—Stephanie Vermillion, Outside Online, 3 July 2025
Blue and red stars shine brightly, while nearby blue spiral galaxies and distant red galaxy groups can also be seen.
—Eric Lagatta, USA Today, 25 June 2025
See All Example Sentences for spiral galaxy
Cite this Entry
“Spiral galaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spiral%20galaxy. Accessed 25 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share