Efficiency meaning

ĭ-fĭshən-sē
Frequency:
Efficiency is defined as the ability to produce something with a minimum amount of effort.

An example of efficiency is a reduction in the number of workers needed to make a car.

noun
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The ratio of the effective or useful output to the total input in any system.
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The ratio of effective work to the energy expended in producing it, as of a machine; output divided by input.
noun
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The extent to which a resource, such as electricity, is used for the intended purpose; the ratio of useful work to energy expended.

The efficiency of this loudspeaker is 40%.

noun
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(dated) The quality of producing an effect or effects.
noun
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Ability to produce a desired effect, product, etc. with a minimum of effort, expense, or waste; quality or fact of being efficient.
noun
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(United States) A one-room apartment.

I have an efficiency available June through July.

Fully-furnished efficiencies.

noun
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An efficiency apartment.
noun
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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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The extent to which time is well used for the intended task.

The efficiency of the planning department is deplorable.

noun
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Origin of efficiency

  • Latin efficientia

    From Wiktionary