Category: S

Swelling of the scrotum, usually as a result of infection of the pelvic lymphatics by filaria.  

An electrode placed on the surface of the skin or exposed organ.  

An electrode placed beneath the skin.  

The standard reference electrode against which all others are measured. Its assigned electrode potential is 0.000 V.  

An electrode in which the sensing membrane is made of a single crystal or pressed pellet containing the salt of the ion to be sensed.  

One of two practical reference electrodes, used with a mercurous chloride (calomel) paste in pH and other potentiometric instruments. The other is the silver/silver chloride electrode. The calomel electrode has been the standard secondary reference electrode used in the laboratory since the introduction of the pH electrode.  

An electrocardiographic study, usually performed on patients with unexplained loss of consciousness or suspected dysrhythmias, in which hundreds of QRS complexes are collected, filtered, and analyzed to discover the presence or absence of certain abnormalities in the conducting system of the ventricle. These abnormalities, called late potentials, point to an increased risk of ventricular tachycardia…

Electricity generated by friction of certain materials.  

Eczema marked by excessive secretion from the sebaceous glands.  

The ultrasonic identification of segments of heart muscle that do not move properly when a patient with coronary artery disease exercises or takes a vasodilating drug (e.g., adenosine or dipyridamole). Stress-induced impairments in regional heart muscle activity are used as markers of obstructions in specific coronary arteries.