| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Ferromagnetic material | Mining | A. Material that in general exhibits the phenomena of hysteresis and saturation and whose permeability is dependent on the magnetizing force. Microscopically, the elementary magnets are aligned parallel in volumes called domains. The unmagnetized condition of a ferromagnetic material results from the overall neutralization of the magnetization of the domains to produce zero external magnetization b. The three substances, iron, nickel, and cobalt, are so considerably more magnetic than any other substances that they are grouped by themselves; they are termed ferromagnetic. (references) | |
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