Definition of "watermark" []

• A mark showing the greatest height to which water has risen. (noun)
• A line indicating the heights of high and low tide. (noun)
• A translucent design impressed on paper during manufacture and visible when the paper is held to the light. (noun)
• The metal pattern that produces this design. (noun)
• To mark (paper) with a watermark. (verb-transitive)

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.

• "The book, the cover of which ripples with the watermark from a dollar bill, was, Child says, greatly influence by films such as High Society."
• "The artifact fields allow the user to search using information about the work the watermark is found in such as repository institution, country, format, author, etc."
• "Given several marked files, an attacker can locate all or most of the places the watermark is hidden, which is again the first step in removing the watermark."