unipotential

[ yoo-nuh-puh-ten-shuh l ]
/ ˌyu nə pəˈtɛn ʃəl /

adjective

Electricity, Electronics. having uniform electric potential throughout, as a hot cathode (unipotential cathode) indirectly heated by a separate heater circuit so that there is no lateral change of voltage across the cathode due to resistance to a heating current.
Biology. unipotent.

Origin of unipotential