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
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The agency would terminate missions currently exploring Jupiter, on the way to study an asteroid, and approaching interstellar space. ArsTechnica, 26 June 2025 This realization reconfigures the entire book, recasting their ongoing dialogue and seemingly cordial relations as an interstellar jail—and the novel itself into an extended, especially cruel prison sentence. Robert Rubsam, The Atlantic, 21 June 2025 Mistake Now the Vienna Tourist Board, ESA, and the Vienna Symphony Orchestra hope to make some small amends by beaming the waltz to Voyager 1 as part of what is billed as an interstellar live broadcast. David Szondy may 25, New Atlas, 25 May 2025 The Trump administration proposes terminating the Juno mission, which is the only spacecraft currently orbiting Jupiter, as well as the New Horizons probe that visited Pluto a decade ago and is now blazing a trail toward interstellar space. ArsTechnica, 11 June 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

Browse Nearby Words

Cite this Entry

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