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

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. —Elizabeth Gamillo, Smithsonian Magazine, 7 July 2025

Other visitors from beyond our solar system Scientists know of only two other interstellar objects that have ever been observed from Earth. —Mary Walrath-Holdridge, USA Today, 4 July 2025

The other two interstellar objects were 2I/Borisov, reported in 2019, and Oumuamua in 2017. —CBS News, 3 July 2025

The object’s potentially interstellar origins excited scientists across the globe, and the next morning, the European Space Agency confirmed that this object, first named A11pl3Z and then designated 3I/ATLAS, is the third ever found from outside our solar system. —Darryl Z. Seligman, The Conversation, 3 July 2025

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