There are various conditions that can cause muscle twitching. Minor muscle twitching is usually the result of less serious, lifestyle-related causes. More severe muscle twitching, however, is often the result of a serious condition.
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air).
an electrode having on one end a metallic point; used in applying current. therapeutic electrode. one smaller than an indifferent electrode, producing electrical stimulation in a concentrated area; called also active electrode.