ɪˈfektɪv adj. & n. --adj. 1 having a
definite or desired
effect. 2
powerful in effect;
impressive. 3 a
actual; existing in
fact rather than officially or theoretically (took effective
control in
their absence). b
actually usable; realizable;
equivalent in
its effect (effective
money; effective demand). 4
coming into operation (effective as
from 1 May). 5 (of manpower) fit
for work or service. --n. a
soldier available for service. øøeffectively adv. effectiveness n. [ME f. L effectivus (as EFFECT)]