France:effectif (late 14c)＜ Latin: effectus ＜ efficiō ("productive, effective")
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- Having the power to produce a required effect or effects.
- The pill is an effective method of birth control.
- Producing a decided or decisive effect.
- The president delivered an effective speech!
- Efficient, serviceable, or operative, available for useful work.
- How long does it take to make a bunch of civilians an effective military force?
- My effective income after taxes and child support is $500 a month.
- The effective radiated power is determined by multiplying the transmitter power output with the antenna gain.
- The effective voltage of an alternating current is 0.7 times its peak voltage.
- Actually in effect.
- The curfew is effective at midnight.
having the power to produce a required effect or effects
producing a decided or decisive effect
efficient, serviceable, or operative
actually in effect
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