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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Both spacecraft entered interstellar space decades after liftoff, and have sent back to Earth some of the most fascinating and important astrophysics information to date. Monisha Ravisetti, Space.com, 11 Apr. 2025 These interstellar fireworks are vivid and speedy, and can come in all sorts of colors—notably white, yellow, and green—due to the remnants of metal. Stephanie Vermillion, Outside Online, 13 Feb. 2025 Getting a glimpse of the brilliant scene through JWST, a team at NASA created a 3D scan of the interstellar material that displays its intricacies in tremendous detail. Jack Knudson, Discover Magazine, 16 Jan. 2025 The resulting interaction creates an interstellar distortion that interferes with the normal flow of time, sending the certificate back thousands of years into the past. Richard Edwards, Space.com, 13 Apr. 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 24 Apr. 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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