There has always been a lot of interest in accelerating brain function with the use of drugs and chemicals but I'm not aware of anything yet that stimulates the hippocampus to store long term memory.
Editors Contribution(0.00 / 0 votes)Rate this definition: alternating current. Is a type of electric current that changes direction periodically during the cycle. Alternating current is a type of electric current used in most household electricity systems in the US and throughout Europe.
1. something that flows. 2. specifically, electricity transmitted through a circuit. alternating current a current that periodically flows in opposite directions; its amplitude fluctuates as a sine wave. convection current a current caused by movement by convection of warmer fluid into an area of cooler fluid.