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Definitions

spiral galaxy

NOUN
a galaxy in spiral structure
Synonyms
WEAK
barred spiral galaxy spiral spiral nebula

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The event’s light traveled from the nearby spiral galaxy NGC 1637, located about 40 million light-years from Earth.

From Science Daily • Oct. 9, 2025

J0107a is a barred spiral galaxy just like the Milky Way.

From Space Scoop • Jun. 5, 2025

Our solar system is nestled on the third arm of the Milky Way, a spiral galaxy that is, yes, average: just one among 2 trillion galaxies in the universe.

From Slate • Feb. 7, 2025

Euclid took this picture of spiral galaxy NGC 6744, 30 million light-years from Earth.

From New York Times • May 23, 2024

From our galaxy to the nearest spiral galaxy, M31, also in the constellation Andromeda, is 2,000,000 light-years.

From "Cosmos" by Carl Sagan