- Official approval or license to print or publish, especially under conditions of censorship. (noun)
- Official approval; sanction. (noun)
- A mark of official approval: a directive bearing the imprimatur of high officials. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.