Terrestrial magnetism (gcide) | Magnetism \Mag"net*ism\, n. [Cf. F. magn['e]tisme.]
    The property, quality, or state, of being magnetic; the
    manifestation of the force in nature which is seen in a
    magnet. At one time it was believed to be separate from the
    electrical force, but it is now known to be intimately
    associated with electricity, as part of the phenomenon of
    electromagnetism.
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    2. The science which treats of magnetic phenomena.
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    3. Power of attraction; power to excite the feelings and to
       gain the affections. "By the magnetism of interest our
       affections are irresistibly attracted." --Glanvill.
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    Animal magnetism, Same as hypnotism, at one time believe
       to be due to a force more or less analogous to magnetism,
       which, it was alleged, is produced in animal tissues, and
       passes from one body to another with or without actual
       contact. The existence of such a force, and its
       potentiality for the cure of disease, were asserted by
       Mesmer in 1775. His theories and methods were afterwards
       called mesmerism, a name which has been popularly applied
       to theories and claims not put forward by Mesmer himself.
       See Mesmerism, Biology, Od, Hypnotism.
 
    Terrestrial magnetism, the magnetic force exerted by the
       earth, and recognized by its effect upon magnetized
       needles and bars.
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