interstellar

adjective

in·​ter·​stel·​lar ˌin-tər-ˈste-lər 

: 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

Article continues below The burst of activity that formed NGC 2359 — also known as Thor's Helmet — is merely the precursor to the cataclysmic natural light show to follow, when the ageing Wolf-Rayet star ends its life in a supernova explosion that will reshape the nearby interstellar environment. —Anthony Wood, Space.com, 23 Mar. 2026

Using advanced simulations, the team modeled how a moon’s orbit and atmosphere evolve after its host planet is ejected into interstellar space. —Jijo Malayil, Interesting Engineering, 22 Mar. 2026

Giant subterranean sandworms measuring 1,500 feet long; a narcotic that fuels interstellar travel and bends a user’s perception of space-time; a mystical cabal of eugenicist witches—the list goes on. —Andrew Paul, Popular Science, 19 Mar. 2026

Even a comedy set in outer space should transport you or impart some of the grandeur of interstellar travel. —Hannah Jocelyn, New Yorker, 19 Mar. 2026

Word History

First Known Use

1626, in the meaning defined above

Rhymes for interstellar

• cerebellar
• circumstellar
• columellar
• storyteller
• beller
• cellar
• dweller
• eller
• feller
• meller
• sellar
• seller

Kids Definition

interstellar

adjective

in·​ter·​stel·​lar ˌint-ər-ˈstel-ər 

: located or taking place among the stars

interstellar space