Definition of S-1

NCI Dictionary of Cancer Terms
S-1
A drug that is being studied for its ability to enhance the effectiveness of fluorouracil and prevent gastrointestinal side effects caused by fluorouracil. It belongs to the family of drugs called antimetabolites.

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S-1 definition was found in categories: Encyclopedia(1)  

S-1 Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
S-1
In cryptography, the S-1 block cipher was a block cipher posted in source code form on Usenet on 11 August 1995. Although incorrect security markings immediately indicated a hoax, there were several features of the code which suggested it might be leaked source code for the Skipjack encryption algorithm, which was still classified at the time.

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