The imaginary component of the power of an alternating current circuit; the product of the voltage and that part of the current that is out of phase with the voltage.

Alternative spelling of unreactive

(Scientology) A portion of the brain akin to the subconscious where painful memories, or engrams, are stored.

(chemistry) A short-lived compound that is formed temporarily in a reaction mechanism.

Vehicle armor which reacts to the impact of a weapon in such a way as to reduce the damage done, typically by exploding to disrupt the penetrating jet of a shaped-charge weapon.

US standard spelling of reactive armour.

plural of reactive mind

(programming) A declarative programming paradigm where changes to values are automatically propagated, without the need for explicit reassignment.

Alternative form of overreactive

plural of reactive intermediate