Thesaurus: efficiency

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Definitions

1. n. The quality of being efficient or producing an effect or effects; efficient power; effectual agency.
2. n. The ratio of useful work to energy expended.
3. n. the ratio of the output to the input of any system
4. n. skillfulness in avoiding wasted time and effort
5. 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.
6. n:100 n. the ratio of the output to the input of any system n. skillfulness in avoiding wasted time and effort