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efficiency
efficiency definition
ef·fi·ciency (e fis̸h′ən sē, i-)
noun pl. efficiencies -·cies
- ability to produce a desired effect, product, etc. with a minimum of effort, expense, or waste; quality or fact of being efficient
- the ratio of effective work to the energy expended in producing it, as of a machine; output divided by input
- ☆ efficiency apartment
Etymology: L efficientia: see efficient
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