What is watermark?

  • (noun): A line marking the level reached by a body of water.
    Synonyms: water line
    See also — Additional definitions below

Watermark

A watermark is a recognizable image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper. There are two main ways of producing watermarks in paper; the dandy roll process, and the more complex cylinder mould process.

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Some articles on watermark:

Australian Twenty-dollar Note - Security Features
... The paper design included a watermark in the white field of Captain James Cook, the watermark was also used in the last issue of pound banknotes ... Polymer issue includes a watermark or clear imprint of the coat of arms which is printed over ...
Brenneria Salicis
... The bacterium is known to cause 'watermark disease' in willow (Salix ssp.) trees ... Watermark disease affects infected trees by occluding the xylem vessels, impeding circulation ... alba, is very sensitive to watermark disease, while the crack willow, S ...
Watermarks On Postage Stamps and Stationery
... also Postage stamp paper In philately, the watermark is a key feature of a stamp, and often constitutes the difference between a common and a rare stamp ... otherwise identical stamps with different watermarks consider each stamp to be a separate identifiable issue ... The "classic" stamp watermark is a small crown or other national symbol, appearing either once on each stamp or a continuous pattern ...
Mycoplasma Laboratorium - Synthetic Genome - Watermarks
... A much publicised feature of the Mycoplasma laboratorium is the presence of watermark sequences as an ultimate proof of the achievement and as a publicity stunt — similar to the ... The 4 watermarks (present in figure 1 in supplementary material of ) are coded messages in the form of DNA base pairs, of 1246, 1081, 1109 and 1222 base pairs respectively, in natural peptides the 4 ... was disregarded in the latter watermarks ...
Ron Jacobs (broadcaster) - Watermark, Inc.
... radio ratings, Jacobs left KHJ to co-found and become vice president of Watermark Inc ... At Watermark, Jacobs also produced the award-winning Elvis Presley Story, written by rock author Jerry Hopkins and narrated by broadcast personality, Wink Martindale ... Jacobs produced several other notable records at Watermark including "A Child's Garden of Grass", for Elektra Records "Key An Album of Invisible Theater", the debut album ...

More definitions of "watermark":

  • (noun): A distinguishing mark impressed on paper during manufacture; visible when paper is held up to the light.