source material

American  

noun

1. original, authoritative, or basic materials utilized in research, as diaries or manuscripts.

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Example Sentences

Its surprising success had a huge impact on Bethesda Softworks, the developer of its source material, bringing back lapsed players and creating new ones along the way.

From BBC

Often far-removed from their source material, and often just a bit rubbish, they'd gained a reputation as low-quality cash grabs.

From BBC

While The Last of Us was wowing audiences, the producers of Fallout were putting the finishing touches to the first season of their adaptation, one which took a different approach to its source material.

From BBC

Fans of the source material can’t be shocked: Act 2 of the musical is notoriously messy, burdened by the necessary “Wizard of Oz” tie-ins and songs that never soar as high as the stirring knockouts in Act 1.

From Salon

While I chose to revisit “The Matrix” before taking that film in at Cosm, I opted for a different approach with “Wonka,” and I believe one’s likelihood to embrace what Cosm is attempting will increase exponentially by one’s attachment to the source material.

From Los Angeles Times