Noun: effectivity ,e,fek'ti-vu-tee or i,fek'ti-vu-tee
- Power to be effective; the quality of being able to bring about an effect
"The effectivity of the new policy was evident in the improved test scores";
- effectiveness, effectualness, effectuality
See also: effective, effectual, efficacious, ineffective, ineffectual, uneffective
Type of: power, powerfulness
Encyclopedia: Effectivity