source material
noun
original, authoritative, or basic materials utilized in research, as diaries or manuscripts.
Words nearby source material
source amnesia,
source book,
source code,
source document,
source language,
source material,
source program,
sourcing,
sourdine,
sourdough,
sourpuss
Example sentences from the Web for source material
We should have the story of the Forty-seven Ronin, not a Japanese stage version, but a work from the source-material.
The Art Of The Moving Picture |Vachel Lindsay