WordNet (r) 3.0 (2006):

white paper
    n 1: a government report; bound in white [syn: white book,
         white paper]

The Free On-line Dictionary of Computing (19 January 2023):

white paper

    A short treatise whose purpose is to educate
   industry customers.  See, e.g., Architecture Neutral
   Distribution Format.

   (1997-10-24)