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| electrodynamics |
(used with a sing. verb) the branch of physics that deals with the relationship between electric, magnetic, and mechanical phenomena. |
| electromagnetic wave |
a wave that contains a magnetic and electric component and that is created by an accelerating electric charge, such as a radio wave, x-ray, or light. |
| electron lens |
an electric or magnetic field, or a combination of the two, that is used to focus or deflect an electron beam. |
| ferric oxide |
a red-brown solid compound in the natural form of iron ore or rust, processed for use as a pigment and in metallurgy, magnetic tapes and polishing compounds. |
| field |
in physics, an area in which a gravitational, electric, or magnetic force occurs. [1/11 definitions] |
| field magnet |
a magnet used to produce and maintain a magnetic field in an electrical device such as a motor, generator, or particle accelerator. |
| floppy |
in computers, a flexible plastic disk having a magnetic surface used to store data; floppy disk. [1/2 definitions] |
| floppy disk |
a thin flexible plastic disk with a magnetic coating, on which computer information can be stored; diskette; floppy. |
| flux |
in physics, the strength of a force such as a magnetic field. [1/9 definitions] |
| gauss |
a unit of magnetic induction equal to one maxwell or line of magnetic flux per square centimeter. |
| geomagnetism |
the earth's magnetic properties. [2 definitions] |
| heading |
in aeronautics, the direction an aircraft is pointing, expressed as the angle between the aircraft's axis and magnetic north. [1/3 definitions] |
| hodoscope |
a device used to follow the paths of charged particles in a magnetic field. |
| hysteresis |
a lag in the effect on matter after a change in forces affecting it, esp. magnetic forces. |
| image |
in medicine, to create an image of the body or a body part using radiography, ultrasound, magnetic resonance, or other scientific means. [1/10 definitions] |
| induction |
the generation of an electric charge, electromotive force, or magnetism by a body with electric or magnetic properties in a nearby body without direct contact. [1/3 definitions] |
| induction heating |
the induction of an electric current, through the application of an alternating magnetic field, to heat a conducting material. |
| inductive |
of, pertaining to, or using electrical or magnetic induction. [1/4 definitions] |
| isodynamic |
connecting or showing those points on the earth's surface having equal magnetic intensity. [1/2 definitions] |
| isogonic |
connecting or designating points on the earth's surface with equal declination of the earth's magnetic field. [2/3 definitions] |
| line of force |
the imaginary line in a field of electrical or magnetic force that indicates the direction taken by that force. |
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