electro-, electr-, electri-

A unit of energy commonly used in nuclear and particle physics, equal to the energy acquired by an electron in falling through a potential of 1,000,000 volts.

A unit of radioactive power, equal to the power generated by one curie emitting an average energy of 10⁶ electronvolts per disintegration.

An electrocautery (electrosurgery) in which an electric current is applied through a hand-held active electrode and travels back to the generator through an inactive electrode attached to the patient (the grounding pad), so that the patient is part of the electrical circuit.

A needle electrode consisting of a single piece of stainless steel wire coated with insulating material except at the tips.

It must be accompanied by another electrode as a reference.

A stimulating electrode which has the two terminals attached separately and relatively far apart.

An electrophoretic technique (movement of electrically charged particles in a fluid or gel) in which an optical system is used to observe and to measure the electrophoretic movement of the distinct boundaries in a suspension.

An electrode composed of a number of insulated wires inside a metal cannula, with their bare tips at apertures, or openings, flush with the outer circumference of the cannula (small flexible tube inserted into a body cavity for draining off fluid or introducing medication).

It is used to determine the territory of a motor unit.

1. An electrode with many contacts for recording from many sources, as from different depths in the brain.
2. Several sets of terminals providing for the use of several electrodes.

An advanced device operated by battery-powered electric converters that are activated through electrodes provided by muscles: A myoelectric prosthesis uses electromyography signals from voluntarily contracted flexors within a person's elbow, wrist rotations, or hands that open and close the fingers.

A myoelectric prosthesis utilizes the remaining nerve and neuromuscular systems of the human body to control the functions of an electrical operated prosthetic hand, wrist, elbow, or foot.

This national organization establishes certain voluntary industry standards relating to electric motors for some non-electronic products; such as, junction boxes.

These standards refer to the operating characteristics, terminology, basic dimensions, ratings, and testing of products that are used in utility, medical imaging, industrial, commercial, institutional, and residential applications.

A thin, cylindrical electrode with an outer shaft beveled to a sharp point, enclosing a wire or series of wires which can explore the activity of single motor or nerve units of the body or stimulate them.

1. An electric charge caused by an excess of negatively charged electrons.
2. The form of electricity in which the electron is the elementary unit.

A cathode; the pole by which electric current leaves the generating source.

The movement of a cell or an organism away from an electrical stimulus.

The movement of a cell or an organism away from an electrical stimulus.