素材

sùcái
source material (in literature and art)

CEDICT

Entry Composition

1 素 sù
  1. raw silk
  2. white
  3. plain, unadorned
  4. vegetarian (food)
  5. essence
  6. nature
  7. element
  8. constituent
  9. usually
  10. always
  11. ever
2 材 cái
  1. material
  2. timber
  3. ability
  4. aptitude
  5. a capable individual
  6. coffin (old)