white paper

Short definition from Wiktionary

Noun

1. 1
   A document based on research informing and educating a reader regarding a topic, which may also promote a product or a solution.
2. 2
   A parliamentary document announcing or proposing a government policy or action.
3. 3
   Used other than figuratively or idiomatically: see white, paper.
4. 4
   Alternative spelling of white paper.