Main Entry: af·ter·po·ten·tial Pronunciation: -p&-"ten-ch&l Function: noun : the sequence of electrical events thatfollows the action potential of nerve activity and that usually takes the form of a negative followed by a positive potential with both being of much smaller amplitude than the action potential—compare PREPOTENTIAL
afterpotential af·ter·po·ten·tial (āf'tər-pə-těn'shəl) n. A small negative or positive change in electrical potential in a stimulated nerve that follows and is dependent on the main potential.
