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entropy definition - telecom
  1. In physics, and particularly in the area of thermodynamics, a measure of the amount of energy unavailable to do work in a closed system.
  2. The degradation of the matter and energy in the universe to the point of inert uniformity.The dispersal of energy.
  3. In information theory, a measure of the content of a message evaluated with respect to its probability of occurrence, or uncertainty of occurrence, depending on your perspective.
  4. In communications, a measure of the randomness of signal noise occurring in transmission.

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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