|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
electrode e·lec·trode (ĭ-lěk'trōd')
A solid electric conductor through which an electric current enters or leaves an electrolytic cell or other medium.
A collector or emitter of electric charge or of electric-charge carriers, as in a semiconducting device.
|electrode (ĭ-lěk'trōd') Pronunciation Key
A conductor through which an electric current enters or leaves a substance (or a vacuum) whose electrical characteristics are being measured, used, or manipulated. Electrodes can be used to detect electrical activity such as brain waves. Terminal points in electrical components such as transistors, diodes, and batteries are electrodes.