noun
definition
A soldier fit for duty
adjective
definition
Having the power to produce a required effect or effects.
example
The pill is an effective method of birth control.
synonyms
definition
Producing a decided or decisive effect.
example
The president delivered an effective speech!
definition
Efficient, serviceable, or operative, available for useful work.
example
How long does it take to make a bunch of civilians an effective military force?
definition
Actually in effect.
example
The curfew is effective at midnight.
definition
(of a cycle or divisor) Having no negative coefficients.
definition
(for any effective theory) approximate; Not describing the fundamental dynamic changes in some system as they happen.