- 1. The production of the desired effects or results with minimum waste of time, money, effort, or skill. 2. A measure of effectiveness; specifically, the useful work output divided by the energy input.- visual e. a rating used in computing compensation for industrial ocular injuries, incorporating measurements of central acuity, visual field, and ocular motility.
* * *ef·fic·ien·cy (ə-fishґən-se) 1. the ratio of the useful output of a system to the total input. 2. in statistics, the tendency of a procedure to make optimal use of the data.
Medical dictionary. 2011.
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