cosmic string
noun
Definition of cosmic string
: any of a class of hypothetical supermassive astronomical objects that are extremely thin but are millions of light years long and that are postulated to have formed very early in the history of the universe
Explore M-W
1983
First Known Use of cosmic string
1983
Learn More about cosmic string
-
See words that rhyme with cosmic string Britannica.com: Encyclopedia article about cosmic string
Seen and Heard
What made you want to look up cosmic string? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!