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.
Even one outperforming unit, plus continued internal efficiency improvements, could be enough to power it to outperform the KBW Nasdaq Bank Index once again.
"Our research shows that beauty in mathematics is not only an aesthetic notion, but something with structural depth and efficiency," says Professor Heinrich Begehr.
From Science Daily
This setup produced an ultracold quantum gas in which both energy and mass move with complete efficiency.
From Science Daily
If not, your boss may have figured the steady stream of news about layoffs and AI efficiencies sends a strong-enough message.
Despite the resilience seen so far, "these frictions and uncertainties take their toll over time", such as through efficiency loses, according to Obstfeld.
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.
