excitatory junction potential
1. (in prescriptions) of the same.
Eastman Kodak Co.
Chemistry. 1. a prefix used to designate the first element of the same family in the periodic table beyond the one to whose name it is prefixed, as ekaselenium for technetium. eka- pref. One or first, used especially to name undiscovered elements of the periodic table whose characteristics have been postulated: eka-osmium.
noun See one-pointedness