effective🔊

Having the power to produce a required effect or effects. +

Producing a decided or decisive effect.

Efficient, serviceable, or operative, available for useful work.

Actually in effect.

(of a cycle or divisor) Having no negative coefficients.

(of a group action) Such that no group element acts trivially.

(for any effective theory) approximate; Not describing the fundamental dynamic changes in some system as they happen.

(military) a soldier fit for duty