(neurology) An instrument used for recording of electrical brain activity.

(neurology) A recording of electrical brain activity (brain waves) made by an electroencephalograph.

A book published in electronic form.

Alternative form of electric current

An electric current, such as a spark, that is triggered when the potential difference exceeds a threshold value.

the branch of engineering that deals with the technology of electricity, especially the design and application of circuitry and equipment for power generation and distribution, machine control, and communications

Alternative form of ion selective electrode

(music) A keyboard musical instrument, resembling a spinet, or upright, piano in size and general shape, in which tone is generated by electronic circuits and radiated by loudspeaker.

a hydrogen electrode

(chemistry, physics) an electrode in which hydrogen gas is adsorbed on platinum