A group of cortical fields or nuclei that are linked together by their axons to perform a specific brain function. Core components or circuits are constantly in touch with each other, whereas other components can be brought in as the need arises.

Intensive gym exercises with or without weights or gym equipment done in repetition to improve muscle endurance and heart and lung function.

Designated regions within Indiana where the Indiana Constitution says certain courts are to be established.

Miniaturized electrical switches, millions of which can be placed on a computer chip.