cosmic string

noun
|Updated on: 8 Jun 2018

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

Recent Examples of cosmic string from the Web

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

First Known Use of cosmic string

1983

in the meaning defined above

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