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1. (n.) efficiency
the state or quality of being efficient.
2. efficiency
accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort.
3. efficiency
the ratio of the work done by a machine to the energy supplied to it, usu. expressed as a percentage.
Etymology: (1585–95; < L)
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| Definition of 'Efficiency' |
Princeton's WordNet |
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1. (noun) efficiency
the ratio of the output to the input of any system
2. (noun) efficiency
skillfulness in avoiding wasted time and effort
"she did the work with great efficiency"
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1. (noun) efficiency
the quality of being efficient
the efficiency of the public transportation system
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| Definition of 'Efficiency' |
Webster Dictionary |
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1. (noun) Efficiency
the quality of being efficient or producing an effect or effects; efficient power; effectual agency
2. (noun) Efficiency
the ratio of useful work to energy expended
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| Definition of 'Efficiency' |
U.S. National Library of Medicine |
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1. Efficiency
Ratio of output to effort, or the ratio of effort produced to energy expended.
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| Definition of 'Efficiency' |
The Standard Electrical Dictionary |
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1. Efficiency
The relation of work done to energy absorbed. A theoretically perfect machine would have the maximum efficiency in which the two qualities named would be equal to each other. Expressed by a coefficient, q. v., the efficiency in such case would be equal to 1. If a machine produced but half the work represented by the energy it absorbed, the rest disappearing in wasteful expenditure, in heating the bearings, in overcoming the resistance of the air and in other ways, its efficiency would be expressed by the coefficient 1/2 or .5, or if one hundred was the basis, by fifty per centum. There are a number of kinds of efficiencies of an electric generator which are given below.
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Sense: (of an action, tool etc) producing (quick and) satisfactory results
The new lawn mower is much more efficient than the old one.
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 Afrikaans: bekwaamheid |
 Arabic: كَفاءَه، مَقْدِرَه، فاعِل |
 Bulgarian: продуктивност |
 Brazilian: eficiência |
 Czech: schopnost |
 German: die Tüchtigkeit, die Taug |
 Danish: effektivitet |
 Greek: ικανότητα, αποδοτικότητα |
 Spanish: eficiencia, eficacia |
 Estonian: tõhusus |
 Farsi: کارآیی؛ بازده |
 Finnish: tehokkuus |
 French: efficacité |
 Hebrew: יְעִילוּת |
 Hindi: दक्षता, कुशलता |
 Croatian: djelotvornost |
 Hungarian: hathatósság, hatékonyság |
 Indonesian: efisiensi |
 Icelandic: dugnaður, skilvirkni, nÿt |
 Italian: efficienza |
 Japanese: 能率 |
 Korean: 효율성 |
 Lithuanian: sugebėjimas, efektyvumas, |
 Latvian: efektivitāte; lietpratība |
 Malay: kecekapan |
 Dutch: bekwaamheid, doeltreffend |
 Norwegian: effektivitet, virksomhet |
 Polish: skuteczność, sprawność |
 Persian: کارآیی؛ بازده |
 Pashto: اغيزه ناكى، موْثريت مستعد |
 Portuguese: eficiência |
 Romanian: eficienţă |
 Russian: продуктивность |
 Slovak: schopnosť |
 Slovenian: učinkovitost |
 Serbian: efikasnost |
 Swedish: effektivitet, duglighet |
 Thai: ความมีประสิทธิภาพ |
 Turkish: beceriklilik, yeterlik |
 Taiwanese: 效率 |
 Ukrainian: ефективність; продуктивні |
 Urdu: لیاقت |
 Vietnamese: tính hiệu quả |
 Chinese: 效率 |
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Definitions of Efficiency 
