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What does SD stand for?

SD stands for Schematic Description (Bell System)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Information technology (IT) and computers

See other definitions of SD

Other Resources:
We have 158 other meanings of SD in our Acronym Attic

Samples in periodicals archive:

I am not attempting to claim that we each engage in an algebraic equation before we find something funny but that this schematic description reflects the instantaneous reactions of the brain to potentially dangerous misinformation," said the author, Alastair Clarke.