noun ef·fi·cien·cy \i-ˈfi-shən-sē\

: the ability to do something or produce something without wasting materials, time, or energy : the quality or degree of being efficient ( technical )

plural ef·fi·cien·cies

Full Definition of EFFICIENCY

:  the quality or degree of being efficient
a :  efficient operation
b (1) :  effective operation as measured by a comparison of production with cost (as in energy, time, and money)
(2) :  the ratio of the useful energy delivered by a dynamic system to the energy supplied to it

Examples of EFFICIENCY

  1. Because of her efficiency, we got all the work done in a few hours.
  2. The factory was operating at peak efficiency.
  3. A furnace with 80 percent fuel efficiency wastes 20 percent of its fuel.
  4. The company is trying to lower costs and improve efficiencies.

First Known Use of EFFICIENCY

May 25, 2015
callithump Hear it
a noisy boisterous band or parade
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