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.
This means the current flows in one direction then the other around the circuit. The current constantly changes direction (alternates) and so it is called (ac) alternating current. In the UK the frequency of mains electricity is 50 Hz, this means 50 cycles in one second. Three pin plug.