English Dictionary

efficient

/ɪˈfɪʃənt/

adj

making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy

He is an efficient worker.

意味（1）

making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy

An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic[…]real kidneys[…]. But they are nothing like as efficient, and can cause bleeding, clotting and infection—not to mention inconvenience for patients, who typically need to be hooked up to one three times a week for hours at a time.

意味（2）

expressing the proportion of consumed energy that was successfully used in a process; the ratio of useful output to total input

The motor is only 20% efficient at that temperature.

意味（3）

causing effects, producing results; bringing into being; initiating change (rare except in philosophical and legal expression efficient cause = causative factor or agent)

It was well said of Plotinus, that the stars were significant, but not efficient.

意味（4）

(proscribed, old use) effective, efficacious

Ye wake no more to anguish;‥ ye have borne

The Chosen, the Destroyer!‥ soon his hand

Shall strike the efficient blow;

Soon shaking off your penal forms, shall ye,

With songs of joy, amid the Eden groves,

Ye wake no more to anguish;‥ ye have borne The Chosen, the Destroyer!‥ soon his hand Shall strike the efficient blow; Soon shaking off your penal forms, shall ye, With songs of joy, amid the Eden groves, Hymn the Deliverer’s praise!