Thesaurus: entropy

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1. n. 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.
2. n. (communication theory) a numerical measure of the uncertainty of an outcome
3. n. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
4. 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 . 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.
5. A certain property of a body, expressed as a measurablequantity, such that when there is no communication of heat thequantity remains constant, but when heat enters or leaves the bodythe quantity increases or diminishes. If a small amount, h, of heatenters the body when its temperature is t in the thermodynamic scalethe entropy of the body is increased by h . The entropy is regardedas measured from some standard temperature and pressure. Sometimescalled the thermodynamic function.The entropy of the universe tends towards a maximum. Clausius.
6. n:100 n (communication theory) a numerical measure of the uncertainty of an outcome n (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work