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.
Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Elizabeth Gamillo, Smithsonian Magazine, 7 July 2025 Other visitors from beyond our solar system Scientists know of only two other interstellar objects that have ever been observed from Earth. Mary Walrath-Holdridge, USA Today, 4 July 2025 The other two interstellar objects were 2I/Borisov, reported in 2019, and Oumuamua in 2017. CBS News, 3 July 2025 The object’s potentially interstellar origins excited scientists across the globe, and the next morning, the European Space Agency confirmed that this object, first named A11pl3Z and then designated 3I/ATLAS, is the third ever found from outside our solar system. Darryl Z. Seligman, The Conversation, 3 July 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 20 Jul. 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

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