electro-, electr-, electri-

(Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity)

Electronics in our lives consists of numerous tools

Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.

acoustoelectric effect, electroacoustic effect (s) (noun); acoustoelectric effects, electroacoustic effects (pl)
The generation of a DC voltage in a crystal or in a metallic material, resulting from sound waves traveling along the surface of the metals: "The sound engineering students were experimenting with the development of the acoustoelectric effects using different metal surfaces."
acoustoelectronics (s) (noun) (a plural form used as a singular)
The use of sound energy to create waves: "Acoustoelectronics is usually done with crystals or metals that react when bombarded with acoustic waves, and the processing of such waves prior to the reproduction of the original sounds."
active electrode, localizing electrode, exciting electrode (s); active electrodes, localizing electrodes, exciting electrodes (pl) (nouns)
1. An electrode that is smaller than a dispersive electrode and which produces stimulation in a concentrated area.
2. An electrode which is smaller than the indifferent electrode that is used to stimulate or to record from a localized area.
ambulatory electrocardiographic monitoring (s) (noun), ambulatory electrocardiographic monitorings (pl)
An essential tool in the diagnostic evaluation of patients with cardiac arrhythmias: The ambulatory electrocardiographic monitoring is used to help determine whether someone has an otherwise undetected heart disease; such as, an abnormal heart rhythm (cardiac arrhythmia), or inadequate blood flow through the heart.

Specifically, ambulatory electrocardiographic monitoring can detect abnormal electrical activity in the heart which may occur randomly or only under certain circumstances; such as, during sleep or periods of physical activity or stress, which may or may not be picked up by standard, short-term electrocardiography performed in a doctor's office.

The main complaint that people have with ambulatory electrocardiographic monitoring is that the monitor may be cumbersome and interfere with certain activities, especially sleeping; however, bathing and showering are not allowed during the monitoring period.

The signals of the ambulatory electrocardiographic monitoring are recorded on a cassette tape that runs slowly for a 24 hour recording, then the tape is quickly analyzed by a machine which stops when it detects any abnormalities in the recording.

amphoteric electrolyte (s), amphoteric electrolytes (pl) (nouns)
A solution that produces both hydrogen and hydroxyl ions.
anelectrotonus (s) (noun)
A physical condition of decreased irritability of a nerve or muscle of the body in the region of the positive electrode or anode (major flow of electrons) during the passage of a current of electricity through it: "The anelectronus is a reduced sensitivity that is produced in a nerve or muscle in the region of contact with the positive electrode when an electric current is passed through it."
atmospheric electric field (s) (noun), atmospheric electric fields (pl)
1. The atmosphere's electric field strength in volts per meter at any specified point in time and space; near the earth's surface, in fair-weather areas.

A typical datum is about 100 and the field is directed vertically in such a way as to drive positive charges downward.

2. A quantitative term indicating the electric field strength of the atmosphere at any specified point in space and time.
3. A measure, in volts per meter, of the electrical energy in a given portion of the earth's atmosphere at a given time.
atmospheric electricity (usually singular) (noun), atmospheric electricities (pl)
1. The electrical processes occurring in the lower atmosphere, including both the intense local electrification accompanying storms and the much weaker fair-weather electrical activity over the entire globe produced by the electrified storms continuously in progress.
2. The study of electrical processes occurring within the atmosphere.
3. Electrical phenomena, regarded collectively, that occur in the earth's atmosphere.

These phenomena include not only such striking manifestations as lightning and St. Elmo's fire, but also less noticeable but more ubiquitous effects; such as, atmospheric ionization, the air–earth currents, and other quiescent electrical processes.

The existence of separated electric charges in the atmosphere is a consequence of many minor processes; such as, spray electrification, dust electrification, etc. and a few major processes including, cosmic-ray ionization, radioactive-particle ionization, and thunderstorm electrification.

The maintenance of the prevailing atmospheric electric field is now widely believed to be due to thunderstorm effects.

atrial electrogram, high right atrial electrogram (s); atrial electrograms, high right atrial electrograms (pl) (nouns)
An intracardiac electrogram which records electrical potentials within the upper region of the right upper chamber of the heart that receives blood from the veins and forces it into the lower part of the heart that moves blood to the rest of the body, obtained by the introduction of electrodes high in the upper part of the heart near the sinus node or the small mass of specialized cardiac muscle fibers located in the back wall of the right upper space of the heart: "The intracardiac electrogram is used in localizing conduction blocks (delays in the normal flow of electrical impulses that cause the heart to beat) and diagnosing arrhythmias (abnormal rates or rhythms) of the heart."

battery electrolyte (s), battery electrolytes (pl) (nouns)
1. A liquid, paste, or other conducting medium in a battery, in which the flow of electric current takes place by migration of ions.
2. A substance that, in solution, conducts an electric current and is decomposed by its passage.

Acids, bases, and salts are common electrolytes.

bioelectric, electrobiologic (adjectives)
1. Of or pertaining to electrical phenomena produced in living organisms; such as, that which is generated by muscle and nerve tissue.
2. The presence of electric current within muscular and neural tissue.
3. The production of electric power directly from biomass.
bioelectricity (s) (noun)
The existence of electrical currents which are generated by and flow within muscular and nerve tissues: "Bioelectricity involves the scientific study of naturally-occurring biological electric currents and of the effects of external electromagnetic forces on biological systems."
The use of techniques, tools, and knowledge gained in the study of the electrochemistry and physiology of living organisms.
Electrical production by living organisms.
A reference to the production of electricity by organisms.

The references or sources of information for compiling the words and definitions in this unit are listed at this Electronic Bibliography page or specific sources are indicated when they are appropriate.

A cross reference of word units that are related, directly and/or indirectly, with "electricity": galvano-; hodo-; ion-; piezo-; -tron; volt; biomechatronics, info; mechatronics, info.