efficiency
Americannoun
plural
efficiencies-
the state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance.
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accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort.
The assembly line increased industry's efficiency.
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the ratio of the work done or energy developed by a machine, engine, etc., to the energy supplied to it, usually expressed as a percentage.
noun
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the quality or state of being efficient; competence; effectiveness
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the ratio of the useful work done by a machine, engine, device, etc, to the energy supplied to it, often expressed as a percentage See also thermal efficiency
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The ratio of the energy delivered (or work done) by a machine to the energy needed (or work required) in operating the machine. The efficiency of any machine is always less than one due to forces such as friction that use up energy unproductively.
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See also mechanical advantage
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The ratio of the effective or useful output to the total input in any system.
Other Word Forms
- nonefficiency noun
- superefficiency noun
Etymology
Origin of efficiency
First recorded in 1585–95; from Latin efficientia, from efficient- (stem of efficiēns efficient ) + -ia -y 3
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Advanced packaging connects chips, such as logic and memory chips, in more efficient ways, increasing speed, efficiency and density.
From MarketWatch
“We expect a continued rotation as non-technology sectors experience growth thanks to higher profit margins through AI adoption and greater operating efficiencies,” said Richard Saperstein, chief investment officer at investment group Treasury Partners.
From Barron's
Canadian National Railway CNR 1.85%increase; green up pointing triangle reported higher profit and revenue for the fourth quarter thanks to better freight volumes and improved operational efficiency.
Modifying these programs to improve their efficiencies and flatten growth of the government’s spending trajectory, on a fair and equitable basis, is certainly possible.
From Barron's
The project aims to improve efficiency in the power system and support China's efforts to increase the use of renewable energy.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
