entropy

Noun
  1. (communication theory) a numerical measure of the uncertainty of an outcome (synset 105098731)
    "the signal contained thousands of bits of information"
    referred to in: communication theory, communications - the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.)
    is a type of: information measure - a system of measurement of information based on the probabilities of the events that convey information
    same as: information, selective information
  2. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work (synset 105019769)
    "entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity"
    referred to in: thermodynamics - the branch of physics concerned with the conversion of different forms of energy
    is a type of: physical property - any property used to characterize matter and energy and their interactions
    subtypes: conformational entropy - entropy calculated from the probability that a state could be reached by chance alone
    same as: randomness, s

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