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efficiency
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English Dictionary: Efficiency by the DICT Development Group
2 results for Efficiency
From WordNet (r) 3.0 (2006) [wn]:
efficiency
n
  1. the ratio of the output to the input of any system
  2. skillfulness in avoiding wasted time and effort; "she did the work with great efficiency"
    Antonym(s): inefficiency
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Efficience \Ef*fi"cience\, Efficiency \Ef*fi"cien*cy\, n. [L.
      efficientia.]
      1. The quality of being efficient or producing an effect or
            effects; efficient power; effectual agency.
  
                     The manner of this divine efficiency being far above
                     us.                                                   --Hooker.
  
      2. (Mech.) The ratio of useful work to energy expended.
            --Rankine.
  
      {Efficiency of a heat engine}, the ratio of the work done an
            engine, to the work due to the heat supplied to it.
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