1. The centimeter-gram-second electromagnetic unit of electromotive force: One abvolt is the difference of potential between any two points when one erg of work is required to move one abcoulomb of electricity between them; equal to 10^-8 volts.

2. The unit of electromotive force in the electromagnetic centimeter-gram-second system: One abvolt equals 10^-8 volts in the absolute meter-kilogram-second system.