Category: E

A substance consisting of only one kind of atom. A basic simple chemical substance which cannot be broken down into simpler substances. Simplest chemical form, in which only one kind of atom is contained (e.g., oxygen). A substance which cannot be decomposed by the ordinary types of chemical change, or made by chemical union. An…

Electroconvulsive shock therapy.  

The observation of fetal heart rate and maternal uterine contractions through an internal or external monitoring device. The use of an electronic device to monitor vital signs of the fetus.  

Any systematic procedure for the handling or manipulating of information through the use of high-speed electronic devices.  

The proper concentration of various minerals within the blood and body fluids. Equilibrium between electrolytes in the body that is essential for normal functioning, with a deficiency or excess of a particular electrolyte usually producing characteristic symptoms. The normal electrolyte balance may be disturbed by many disorders, including prolonged diarrhea or vomiting, kidney malfunction, or…

The passage of a controlled electrical current through the brain to promote a convulsion as a means of treating depression.    

A treatment for killing cancerous tissue by the use of heat and electric current. The control of haemorrhage in surgery by passing a high-frequency electric current through divided blood vessels. The coagulation of tissues by means of a high-frequency electric current concentrated at one point as it passes through them. Electrocoagulation, using a diathermy knife,…

A person trained in the use of the electrocardiograph.  

A governmental or voluntary position which is filled through an election by the organization’s constituents.  

A pattern of continually refusing to speak in almost all social situations, including school, even though the child understands spoken language and is able to speak. Elective mutism (also known as selective mutism) is a psychiatric condition occurring primarily during childhood that is characterized by the refusal or failure to speak in specific situations (in…