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primary source

American  
[prahym-er-ee sawrs, sohrs] / ˈpraɪm ɛr i ˈsɔrs, ˈsoʊrs /

noun

  1. a first-hand or original account.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

They first examined what happened when male mice were castrated, removing the primary source of testosterone.

From Science Daily ● Oct. 18, 2026

The staffer said that examiners were no longer allowed to access the primary source level data and could only “check the checker now,” meaning they must rely on a company’s own findings.

From Salon ● Sep. 1, 2026

The event formally opens the Costume Institute's spring exhibition, which serves as the department's primary source of funding and runs until January 2027.

From BBC ● May 3, 2026

It typically remains their primary source of calories and nutrients throughout the first year.

From The Wall Street Journal ● Apr. 29, 2026

The really interesting thing is that I might actually have another primary source literally under my pillow.

From "Fast Pitch" by Nic Stone

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