# Definition of Entropy. Meaning of Entropy. Synonyms of Entropy

Here you will find one or more explanations in English for the word Entropy. Also in the bottom left of the page several parts of wikipedia pages related to the word Entropy and, of course, Entropy synonyms and on the right images related to the word Entropy.

## Definition of Entropy

Entropy
Entropy En"tro*py, n. [Gr. ? a turning in; ? in + ? a turn, fr. ? to turn.] (Thermodynamics) A certain property of a body, expressed as a measurable quantity, such that when there is no communication of heat the quantity remains constant, but when heat enters or leaves the body the quantity increases or diminishes. If a small amount, h, of heat enters the body when its temperature is t in the thermodynamic scale the entropy of the body is increased by h ? t. The entropy is regarded as measured from some standard temperature and pressure. Sometimes called the thermodynamic function. The entropy of the universe tends towards a maximum. --Clausius.

## Meaning of Entropy from wikipedia

- In statistical mechanics, entropy is an extensive property of a thermodynamic system. It is closely related to the number Ω of microscopic configurations...
- Information entropy is the average rate at which information is produced by a stochastic source of data. The measure of information entropy ****ociated...
- thermodynamics states that the total entropy of an isolated system can never decrease over time. The total entropy of a system and its surroundings can...
- In information theory, the cross entropy between two probability distributions p {\displaystyle p} and q {\displaystyle q} over the same underlying set...
- in the following categories: Thermodynamic entropy Entropy and information Quantum mechanical entropy Entropy, in thermodynamics, is a state function originally...
- In computing, entropy is the randomness collected by an operating system or application for use in cryptography or other uses that require random data...
- and numerous other fields. A key measure in information theory is "entropy". Entropy quantifies the amount of uncertainty involved in the value of a random...
- maximum entropy states that the probability distribution which best represents the current state of knowledge is the one with largest entropy, in the...
- regarding the properties of closed systems in thermodynamic equilibrium: The entropy of a system approaches a constant value as its temperature approaches absolute...
- Differential entropy (also referred to as continuous entropy) is a concept in information theory that began as an attempt by Shannon to extend the idea...