blue book Meaning, Definition & Usage

  1. noun a report published by the British government; bound in blue
  2. noun a register of persons who are socially prominent
  3. noun a blue booklet used in universities for writing examinations

WordNet

Blue" book`
Definitions
  1. A parliamentary publication, so called from its blue paper covers. Eng.
  2. The United States official "Biennial Register."

Webster 1913