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, as described by Dr. William Gilbert [1540-1603] in a treatise on the magnet in 1600.


electrooculography
1. Oculography in which electrodes placed on the skin adjacent to the eyes measure changes in standing potential between the front and back of the eyeball as the eyes move.
2. A sensitive electrical test for detection of retinal pigment epithelium dysfunction.
3. The study and interpretation of electroencephalograms made by moving the eyes a constant distance between two fixed points.
electro-olfactogram, electroolfactogram (EOG)
An electronegative wave of potential (electric tension or pressure) occurring on the surface of the olfactory epithelium (outside layer of cells) in response to stimulation by an odor.
electro-optical fingerprint recognition
A biometric technology that provides for the scanning, comparison, and identification of fingerprints without the traditional need for ink and paper.

An optical scanning and recognition system is used in conjunction with a matching system to enable efficient authentication for secure spaces and devices. Like other fingerscanning technologies, electro-optical fingerprint recognition makes it possible to quickly and accurately compare a given fingerprint image to thousands of stored images.

Electro-optical fingerprint scanners are generally designed to be portable, easy to use, and physically rugged. The devices are becoming more widely used as an alternative to passwords for consumer electronics or as part of a two-factor authentication system where more stringent security is required.

The fingerprint is optically scanned directly from the finger and the resulting image is focused onto a small chip. The chip converts the focused image into a digital file that can be processed, stored, and compared with other fingerprint images.

The high-resolution digital images can be processed like any other scanned images, eliminating problems caused by aliasing (also called jaggies) and making it possible to quickly compare a fingerprint image with other fingerprint images in a large database.

electroosmosis
electro-osmosis
The movement through a membrane of the solvent phase of a colloidal solution when an electric potential is applied by electrodes positioned on either side of the membrane
electroparacentesis
electropathology
electropathy, electropathology
The study of diseases as related to electrical reactions. (electro, "amber", because an electric charge can be produced in amber by rubbing + patho, "disease".
electrophile
electrophile, electrophily
1. A chemical compound or group that is attracted to electrons and tends to accept electrons.
2. A molecule, or compound, that doesn’t have enough electrons and will tend to take them from another molecule, or compound, with an excess of electrons.
electrophilic
electrophobia
An abnormal fear of electricity.
electrophone
An instrument (as a theremin) that produces musical tones by means of oscillating electric circuits; adjective, electrophonic; adverb, electrophonically.
electrophoresis
1. The migration of charged colloidal particles or molecules through a solution under the influence of an applied electric field usually provided by immersed electrodes. Also called cataphoresis.
2. A method of separating substances, especially proteins, and analyzing molecular structure based on the rate of movement of each component in a colloidal suspension while under the influence of an electric field.
electrophoretic
Of or relating to electrophoresis.

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