Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

entropy

play
noun, en·tro·py \ˈen-trə-pē\

Definition of entropy

plural entropies

  1. 1 :  a measure of the unavailable energy in a closed thermodynamic system that is also usually considered to be a measure of the system's disorder, that is a property of the system's state, and that varies directly with any reversible change in heat in the system and inversely with the temperature of the system; broadly :  the degree of disorder or uncertainty in a system

  2. 2 a :  the degradation of the matter and energy in the universe to an ultimate state of inert uniformity b :  a process of degradation or running down or a trend to disorder

  3. 3 :  chaos, disorganization, randomness

entropic play \en-ˈtrō-pik, -ˈträ-pik\ adjective
entropically play \-pi-k(ə-)lē\ adverb


Origin of entropy

International Scientific Vocabulary 2en- + Greek tropē change, literally, turn, from trepein to turn


First Known Use: 1875

Other Chemical Engineering Terms


Medical Dictionary

entropy

play
noun en·tro·py \ˈen-trə-pē\

Medical Definition of entropy

plural entropies

  1. :  a measure of the unavailable energy in a closed thermodynamic system that is also usually considered to be a measure of the system's disorder and that is a property of the system's state and is related to it in such a manner that a reversible change in heat in the system produces a change in the measure which varies directly with the heat change and inversely with the absolute temperature at which the change takes place; broadly :  the degree of disorder or uncertainty in a system

entropic \en-ˈtrōp-ik, -ˈträp-\play play adjective
entropically \-i-k(ə-)lē\play adverb



Learn More about entropy


Seen and Heard

What made you want to look up entropy? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to dishevel or rumple

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

perplex soothe disapprove reduce
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ