smart

i. A weapon capable of being guided precisely either by self-homing or external inputs so that it has either the capability to score a direct hit or a very low CEP (circular error probability).

ii. As it applies to jammers, the term means those jammers that first pick up the enemy’s transmissions and then jam it on the same frequency. Most spot jammers fall into this category.

iii. As it applies to computers, it is one that can “learn” from user inputs.