effectivea.[L. effectivus: cf. F. effectif.] Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment.()They are not effective of anything, nor leave no work behind them. (Bacon.)Whosoever is an effective, real cause of doing his heighbor wrong, is criminal. (Jer. Taylor.)()n.1. That which produces a given effect; a cause.(Jer. Taylor.)2. One who is capable of active service.()He assembled his army -- 20,000 effectives -- at Corinth. (W. P. Johnston.)[F. effectif real, effective, real amount.]3. (Com.) Specie or coin, as distinguished from paper currency; -- a term used in many parts of Europe.(Simmonds.)4. The serviceable soldiers in a country; an army or any military body, collectively; as, France's effective.()