The definition of efficient is being productive with minimal effort.(adjective)
An example of efficient is a car that gets 60 miles to a gallon of gas.
See efficient in Webster's New World College Dictionary
Origin: ME & OFr < L efficiens, prp. of efficere: see effect
See efficient in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old French
Origin: , from Latin efficiēns, efficient-
Origin: , present participle of efficere, to effect; see effect.
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