electro-, electr-, electri-

1. A crystalline compound that has a natural spontaneous electric polarization that can be reversed by the application of an electric field.
2. Relating to a crystalline dielectric that can be given a permanent electric polarization by the application of an electric field.

The recording of the electrical currents of the fetal (unborn child) heart.

The electrode that controls the convergence of the electron beam and permits focusing the spot on the screen of a cathode ray tube.

A quality of being easily damaged, broken, or destroyed.

Other terms for frictional electricity.

1. An electron in or beyond the outermost electron shells of an atom which is unbound or very weakly bound.
2. An electron which is not attached to an atom, an ion, or a molecule but it is free to move under the influence of an electric field.
3. An electron that is not bonded to an atom or a molecule and so is free to move under external electric or magnetic fields.

Static electricity produced by friction which is generated by rubbing two objects together.

The use of a high-voltage electric stimulator to treat muscle spasms, edema of acute injury (excess serous fluid between tissue cells), myofascial pain (fibrous tissue that encloses and separates layers of muscles), and certain additional disorders.

Electricity generated by chemical actions.

An electrode in which a gas-permeable membrane of the body separates the test solution from an aqueous electrode solution in contact with an ion-selective electrode.

Gas permeation of the membrane changes the chemical equilibrium within the electrolyte, and the ion-sensitive electrode detects this change.

An electrophoretic technique in which the charged material migrates through an agar gel (gelatinous product extracted from certain red algae) rather than on a fluid-impregnated solid strip.

An active geophysical method which employs electrical current to examine subsurfaces of earth materials: The geoelectric survey measures ground characteristics by sending direct signals into the soil and measuring the resulting potentials, or voltages, that are created.

The geoelectric survey involves a process that is done to determine various discoveries, such as:

• Groundwater Exploration
• Coal Exploration
• Gold Exploration
• Iron Ore Exploration
• Manganese Exploration
• Chromites Exploration

An instrument that can be suspended from the side of a moving ship to measure and to calculate the direction and speed of ocean currents: A geomagnetic electrokinetograph is used while the ship is underway by measuring the voltage produced by the Earth's magnetic field in the moving conductive seawater.

A unit of energy, used primarily in high-energy physics of one thousand million or one billion electron volts.

An electrode for measuring the pH of a solution, based on the fact that a thin sheet of glass is permeable to hydrogen ions but not to other ions.

The device often contains both electrodes of a cell within it; that is, a reference electrode as well as the glass electrode proper, and a salt bridge for connecting them, so that the potential produced by the cell depends on the pH of the solution in which the appliance is immersed.