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}. [1913 Webster]

The entropy of the universe tends towards a maximum. --Clausius. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Entropy ry — is a non profit student organization for the advancement of electronic music culture at the Helsinki University of Technology. Founded in 1993 it is the oldest active organization of its kind in the Helsinki metropolitan area and one of the… …   Wikipedia

  • entropy — [en′trə pē] n. [Ger entropie, arbitrary use (by R. J. E. Clausius, 1822 88, Ger physicist) of Gr entropē, a turning toward, as if < Ger en(ergie), ENERGY + Gr tropē, a turning: see TROPE] 1. a thermodynamic measure of the amount of energy… …   English World dictionary

  • Entropy — és una red P2P(Peer to peer) descentralizada similar a la Freenet o a la GNUnet y que busca el anonimato de sus usuarios. El programa(que también se llama igual) que la mantiene está escrito en lenguaje C y no en Java como su antecesor Freenet.… …   Enciclopedia Universal

  • entropy — 1868, from Ger. Entropie measure of the disorder of a system, coined 1865 (on analogy of Energie) by German physicist Rudolph Clausius (1822 1888) from Gk. entropia a turning toward, from en in (see EN (Cf. en ) (2)) + trope a turning (see TROPE… …   Etymology dictionary

  • entropy — [n] deterioration breakup, collapse, decay, decline, degeneration, destruction, falling apart, worsening; concepts 230,698 …   New thesaurus

  • entropy — ► NOUN Physics ▪ a thermodynamic quantity expressing the unavailability of a system s thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system. DERIVATIVES entropic adjective.… …   English terms dictionary

  • Entropy — This article is about entropy in thermodynamics. For entropy in information theory, see Entropy (information theory). For a comparison of entropy in information theory with entropy in thermodynamics, see Entropy in thermodynamics and information… …   Wikipedia

  • entropy — entropic /en troh pik, trop ik/, adj. entropically, adv. /en treuh pee/, n. 1. Thermodynam. a. (on a macroscopic scale) a function of thermodynamic variables, as temperature, pressure, or composition, that is a measure of the energy that is not… …   Universalium

  • Entropy — A mathematical measurement of the degree of uncertainty of a random variable. Entropy in this sense is essentially a measure of randomness. It is typically used by financial analysts and market technicians to determine the chances of a specific… …   Investment dictionary

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