English dictionary

entropy meaning and definition


Definition of entropy (noun)

  1. (communication theory) a numerical measure of the uncertainty of an outcome
  2. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
    • "entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity"
    • synonyms: randomness, S
Source: Princeton University Wordnet