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
The fuzzy blob at the top resolves into a distant spiral galaxy unrelated to the object itself.
—
Gayoung Lee, Scientific American, 12 Aug. 2025
What looks like a giant glowing penguin or a jumping porpoise was actually once a normal spiral galaxy, named NGC 2936, that got too close to its neighbor.
—Katie Liu, Discover Magazine, 31 July 2025
The next best option for astronomers is gazing at similar nearby spiral galaxies, the closest of which is Messier 31.
—Andrew Paul, Popular Science, 26 June 2025
Some ten million light-years away from Earth sits a brilliant spiral galaxy officially called NGC 253 but known by many different names: Caldwell 65, Silver Dollar Galaxy, the Silver Coin.
—Margherita Bassi, Smithsonian Magazine, 23 June 2025
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Gayoung Lee, Scientific American, 12 Aug. 2025
What looks like a giant glowing penguin or a jumping porpoise was actually once a normal spiral galaxy, named NGC 2936, that got too close to its neighbor.
—Katie Liu, Discover Magazine, 31 July 2025
The next best option for astronomers is gazing at similar nearby spiral galaxies, the closest of which is Messier 31.
—Andrew Paul, Popular Science, 26 June 2025
Some ten million light-years away from Earth sits a brilliant spiral galaxy officially called NGC 253 but known by many different names: Caldwell 65, Silver Dollar Galaxy, the Silver Coin.
—Margherita Bassi, Smithsonian Magazine, 23 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 20 Aug. 2025.
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