Usually means: Measure of disorder or randomness.
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We found 58 dictionaries that define the word entropy:

General (25 matching dictionaries)
  1. entropy: Merriam-Webster.com
  2. entropy: Oxford Learner's Dictionaries
  3. entropy: American Heritage Dictionary of the English Language
  4. entropy: Collins English Dictionary
  5. entropy: Vocabulary.com
  6. Entropy, entropy: Wordnik
  7. entropy: Cambridge Advanced Learner's Dictionary
  8. entropy: Wiktionary
  9. entropy: Webster's New World College Dictionary, 4th Ed.
  10. entropy: The Wordsmyth English Dictionary-Thesaurus
  11. entropy: Infoplease Dictionary
  12. entropy: Dictionary.com
  13. entropy: Online Etymology Dictionary
  14. Entropy (Buffy the Vampire Slayer), Entropy (DC Comics), Entropy (Information theory), Entropy (anonymous data store), Entropy (arrow of time), Entropy (astrophysics), Entropy (classical thermodynamics), Entropy (comics), Entropy (computing), Entropy (disambiguation), Entropy (ecology), Entropy (energy dispersal), Entropy (film), Entropy (general concept), Entropy (information theory), Entropy (journal), Entropy (order and disorder), Entropy (statistical thermodynamics), Entropy (statistical views), Entropy (statistics), Entropy (thermodynamics), Entropy (video game), Entropy: Wikipedia, the Free Encyclopedia
  15. Entropy: Online Plain Text English Dictionary
  16. entropy: Webster's Revised Unabridged, 1913 Edition
  17. entropy: Rhymezone
  18. Entropy: AllWords.com Multi-Lingual Dictionary
  19. entropy: Free Dictionary
  20. entropy: Mnemonic Dictionary
  21. entropy: LookWAYup Translating Dictionary/Thesaurus
  22. entropy: Dictionary/thesaurus
  23. entropy: Wikimedia Commons US English Pronunciations

Art (1 matching dictionary)
  1. entropy: ArtLex Lexicon of Visual Art Terminology

Business (6 matching dictionaries)
  1. MoneyGlossary.com (No longer online)
  2. Entropy: Bloomberg Financial Glossary
  3. Construction Term Glossary (No longer online)
  4. entropy: Legal dictionary
  5. Entropy (thermodynamics), Entropy: Financial dictionary
  6. BusinessDictionary.com (No longer online)

Computing (5 matching dictionaries)
  1. entropy: Free On-line Dictionary of Computing
  2. Entropy: CCI Computer
  3. Entropy: Cybernetics and Systems
  4. entropy: Hacking Lexicon
  5. Entropy (thermodynamics), entropy: Encyclopedia

Medicine (4 matching dictionaries)
  1. Dorland's Illustrated Medical Dictionary (No longer online)
  2. Medical Dictionary (No longer online)
  3. online medical dictionary (No longer online)
  4. Entropy (thermodynamics), entropy: Medical dictionary

Miscellaneous (1 matching dictionary)
  1. ENTROPY: Acronym Finder

Science (10 matching dictionaries)
  1. Chemistry Dictionary (No longer online)
  2. Entropy: Eric Weisstein's World of Mathematics
  3. Entropy: Eric Weisstein's World of Physics
  4. Botanical Terms (No longer online)
  5. The Computational Beauty of Nature (No longer online)
  6. Entropy: Extragalactic Astronomy
  7. General Chemistry Online (No longer online)
  8. entropy, entropy, entropy: PlanetMath Encyclopedia
  9. entropy: UNCChem Glossary
  10. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

Tech (6 matching dictionaries)
  1. entropy: Webster's New World Telecom Dictionary
  2. AUTOMOTIVE TERMS (No longer online)
  3. Glossary of Meteorology (No longer online)
  4. National Weather Service Glossary (No longer online)
  5. Glossary of Energy Terms (No longer online)
  6. ENTROPY: Power Engineering

(Note: See entropic as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
noun:  A measure of the disorder present in a system.
noun:  (Boltzmann definition) A measure of the disorder directly proportional to the natural logarithm of the number of microstates yielding an equivalent thermodynamic macrostate.
noun:  (information theory) Shannon entropy
noun:  (thermodynamics, countable) A measure of the amount of energy in a physical system that cannot be used to do work.
noun:  The capacity factor for thermal energy that is hidden with respect to temperature.
noun:  The dispersal of energy; how much energy is spread out in a process, or how widely spread out it becomes, at a specific temperature.
noun:  (statistics, information theory, countable) A measure of the amount of information and noise present in a signal.
noun:  (uncountable) The tendency of a system that is left to itself to descend into chaos.

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Colors:
    rust,     charcoal,     ochre,     sepia,     umber,     maroon,     taupe,     olive,     sienna,     teal



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