1 island universe | Definition of island universe
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island universe

noun

Definition of island universe

: a galaxy other than the Milky Way

Examples of island universe in a Sentence

Recent Examples on the Web

 Filled to the brim with hundreds of billions of stars, these island universes often seem like the most prominent occupants of space’s vast emptiness. — Scientific American, "Nanomachines, Jellyfish Hugs and Hurricane Dorian From Space: The Week's Best Science GIFs," 30 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'island universe.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of island universe

1867, in the meaning defined above

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