interstellar

adjective

in·​ter·​stel·​lar ˌin-tər-ˈste-lər How to pronounce interstellar (audio)
Synonyms of interstellarnext
: 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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Showing conclusively that any given meteoroid comes from interstellar space is a notoriously difficult task, but having more cameras on the sky to boost the odds for good trajectory and velocity measurements would be extremely helpful. Phil Plait, Scientific American, 12 June 2026 Providence follows the four-person crew of an interstellar warship on a multiyear mission of revenge. Alexandra Oliva, The Atlantic, 12 June 2026 Besides studying Martian weather and observing a stray interstellar comet last year, Maven helped relay information from NASA’s Curiosity and Perseverance rovers on the surface. Marcia Dunn, Los Angeles Times, 8 June 2026 The film stays true to much of the original comic with the notable addition of Lobo, an interstellar bounty hunter, played by Jason Momoa. Hannah Abraham, Forbes.com, 6 June 2026 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 17 Jun. 2026.

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

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