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.

Alternative spelling of unreactive

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

plural of cross-reactivity

plural of reactive power

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.

plural of reactive mind

plural of reactive intermediate

Alternative form of overreactive

plural of reactive armour