(historical) A German prince entitled to elect the emperor of the Holy Roman Empire; a prince-elector.

Of a bright, metallic blue colour (electric blue).

(linear algebra) An element on the main diagonal of a square matrix, that is, an element in row k and column k where k is an integer between 1 and the number of rows (or columns) in the matrix.

a device used in the diagnosis and detection of heart abnormalities that measures electric potentials on the surface of the body and creates a record (electrocardiogram) of the electrical currents associated with heart muscle activity

(cardiology) The visual output that an electrocardiograph produces.

(electricity) The potential energy per unit charge at a point in a static electric field.

(electricity, physics) A region of space around a charged particle, or between two voltages, which exerts a force on charged objects in its vicinity.

(physics) A net unidirectional movement of electrons, or other charge carriers, caused by a potential difference.

a painful inflammation of the extensor tendon of the humerus caused by overuse of the muscles of the lower arm

(physics) The static electric energy of a charged body. / (physics) The quantity of unbalanced positive or negative ions in or on an object; measured in coulombs.