Category:Efficience

Ef*fi"cience, Ef*fi"cien*cy, n. Etym: [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.)

Defn: 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.