in·​ter·​stel·​lar | \ ˌin-tər-ˈste-lər \

Definition of interstellar

: 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

The best books of this year told stories of interstellar colonization, of fantastic magical civilizations, optimistic alternate worlds, and devastating potential futures. Andrew Liptak, The Verge, "Our favorite science fiction and fantasy books of 2018," 21 Dec. 2018 Stories like The Hitchhiker’s Guide to the Galaxy and The Garden of Rama feature planets around Barnard’s star as way stations for interstellar travelers. Loren Grush, The Verge, "A cold ‘super-Earth’ may live around a nearby star," 14 Nov. 2018 Our view of this hyperactive region is obscured by interstellar dust particles, which together absorb virtually every photon streaking toward Earth. Alan Hirshfeld, WSJ, "Book Review: Feeling Gravity’s Pull," 16 Nov. 2018 Last week, some Harvard University scientists sparked widespread media attention about a possible alien origination for the mysterious interstellar object known as 'Oumuamua. Eric Berger, Ars Technica, "A powerful NASA telescope looked for ‘Oumuamua and didn’t find it," 14 Nov. 2018 This week in the cosmos a Virgo, Scorpio, and Cancer cast of interstellar starlettes steps up to the plate and invites us to explore the most intimate reaches of our touchy feelies. Bess Matassa, Teen Vogue, "Weekly Horoscopes July 9-15," 9 July 2015 Every weapon these interstellar creeps wield is bigger, louder, and deadlier than before. Joe Pappalardo, Popular Mechanics, "5 Space Forces From Sci-Fi and What We Can Learn From Them," 6 July 2018 The cluster of stars is surrounded by clouds of interstellar gas and dust — the raw materials for the creation of new stars, NASA said. Erin Kelly, USA TODAY, "NASA releases image of 'celestial fireworks' in honor of Independence Day," 4 July 2018 Set in a future, inhabited galaxy, humanity coexists along with thousands of aliens and artificial intelligences in a vast, interstellar diaspora. Andrew Liptak, The Verge, "12 fantastic science fiction and fantasy novels that you should check out this July," 1 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'interstellar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of interstellar

1626, in the meaning defined above

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Statistics for interstellar

Last Updated

6 Jan 2019

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Time Traveler for interstellar

The first known use of interstellar was in 1626

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More Definitions for interstellar



English Language Learners Definition of interstellar

: existing or occurring between stars


in·​ter·​stel·​lar | \ ˌin-tər-ˈste-lər \

Kids Definition of interstellar

: existing or taking place among the stars interstellar gases

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More from Merriam-Webster on interstellar

Rhyming Dictionary: Words that rhyme with interstellar

Thesaurus: All synonyms and antonyms for interstellar

Spanish Central: Translation of interstellar

Nglish: Translation of interstellar for Spanish Speakers

Comments on interstellar

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tremendous in size, volume, or degree

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