Steganography
Computing Dictionary

steganography definition

security
Hiding a secret message within a larger one in such a way that others can not discern the presence or contents of the hidden message. For example, a message might be hidden within an image by changing the least significant bits to be the message bits.
[Chaffing and Winnowing: Confidentiality without Encryption, Ronald L. Rivest, MIT Lab for Computer Science, 1998-03-22 (http://theory.lcs.mit.edu/~rivest/chaffing.txt)].
(1998-07-13)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Steganography is always a great word to know.
So is slumgullion. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
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WordNet
steganography

noun
act of writing in code or cipher [syn: cryptography] 
WordNet® 3.0, © 2006 by Princeton University.
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