electronic surveillance
- n surveillance by electronic means (e.g. television)
electrometer
- n meter to measure electrostatic voltage differences; draws no current from the source
electromotive drug administration
- n therapy that uses a local electric current to introduce the ions of a medicine into the tissues
electromotive force
- n the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
electromotive force series
- n a serial arrangement of metallic elements or ions according to their electrode potentials determined under specified conditions; the order shows the tendency of one metal to reduce the ions of any other metal below it in the series