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ef•fi•cien•cy



Pronunciation: (i-fish'un-sē), [key]
n.,
pl. -cies.

1. the state or quality of being efficient; competency in performance.
2. accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort: The assembly line increased industry's efficiency.
3. the ratio of the work done or energy developed by a machine, engine, etc., to the energy supplied to it, usually expressed as a percentage.
4. See efficiency apartment.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

efficacyefficiency apartment
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