interstellar

adjective

in·​ter·​stel·​lar ˌin-tər-ˈste-lər How to pronounce interstellar (audio)
: located, taking place, or traveling among the stars especially of the Milky Way galaxy

Examples of interstellar in a Sentence

Recent Examples on the Web
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.
For our international team using the Very Large Telescope (VLT) in Chile, 3I/ATLAS presented an extraordinary chance to track the chemical awakening of this ancient interstellar object in real-time. Darryl Seligman, Space.com, 27 Oct. 2025 This could only be the case if 3I/ATLAS had flown into the solar system from interstellar space. Chris Young, Interesting Engineering, 27 Oct. 2025 The maps show the total brightness and color of stars (top), the total density of stars (middle), and the interstellar dust that fills the galaxy (bottom). Big Think, 27 Oct. 2025 And there are other ideas to do with ion drives and collecting interstellar gas and using that to propel yourself along—but all that would involve very lengthy trips. Jeffrey Kluger, Time, 22 Oct. 2025 See All Example Sentences for interstellar

Word History

First Known Use

1626, in the meaning defined above

Time Traveler
The first known use of interstellar was in 1626

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Cite this Entry

“Interstellar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstellar. Accessed 30 Oct. 2025.

Kids Definition

interstellar

adjective
in·​ter·​stel·​lar ˌint-ər-ˈstel-ər How to pronounce interstellar (audio)
: located or taking place among the stars
interstellar space

More from Merriam-Webster on interstellar

Last Updated: - Updated example sentences
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