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4 definitions found
 for Magnetic storm
From The Collaborative International Dictionary of English v.0.48 :

  Magnetic \Mag*net"ic\, Magnetical \Mag*net"ic*al\, a. [L.
     magneticus: cf. F. magn['e]tique.]
     1. Pertaining to the magnet; possessing the properties of the
        magnet, or corresponding properties; as, a magnetic bar of
        iron; a magnetic needle.
        [1913 Webster]
     2. Of or pertaining to, or characterized by, the earth's
        magnetism; as, the magnetic north; the magnetic meridian.
        [1913 Webster]
     3. Capable of becoming a magnet; susceptible to magnetism;
        as, the magnetic metals.
        [1913 Webster]
     4. Endowed with extraordinary personal power to excite the
        feelings and to win the affections; attractive; inducing
        [1913 Webster]
              She that had all magnetic force alone. --Donne.
        [1913 Webster]
     5. Having, susceptible to, or induced by, animal magnetism,
        so called; hypnotic; as, a magnetic sleep. See
        Magnetism. [Archaic]
        [1913 Webster +PJC]
     Magnetic amplitude, attraction, dip, induction, etc.
        See under Amplitude, Attraction, etc.
     Magnetic battery, a combination of bar or horseshoe magnets
        with the like poles adjacent, so as to act together with
        great power.
     Magnetic compensator, a contrivance connected with a ship's
        compass for compensating or neutralizing the effect of the
        iron of the ship upon the needle.
     Magnetic curves, curves indicating lines of magnetic force,
        as in the arrangement of iron filings between the poles of
        a powerful magnet.
     Magnetic elements.
        (a) (Chem. Physics) Those elements, as iron, nickel,
            cobalt, chromium, manganese, etc., which are capable
            or becoming magnetic.
        (b) (Physics) In respect to terrestrial magnetism, the
            declination, inclination, and intensity.
        (c) See under Element.
     Magnetic fluid, the hypothetical fluid whose existence was
        formerly assumed in the explanations of the phenomena of
        magnetism; -- no longer considered a meaningful concept.
     Magnetic iron, or Magnetic iron ore. (Min.) Same as
     Magnetic needle, a slender bar of steel, magnetized and
        suspended at its center on a sharp-pointed pivot, or by a
        delicate fiber, so that it may take freely the direction
        of the magnetic meridian. It constitutes the essential
        part of a compass, such as the mariner's and the
     Magnetic poles, the two points in the opposite polar
        regions of the earth at which the direction of the dipping
        needle is vertical.
     Magnetic pyrites. See Pyrrhotite.
     Magnetic storm (Terrestrial Physics), a disturbance of the
        earth's magnetic force characterized by great and sudden
     magnetic tape (Electronics), a ribbon of plastic material
        to which is affixed a thin layer of powder of a material
        which can be magnetized, such as ferrite. Such tapes are
        used in various electronic devices to record fluctuating
        voltages, which can be used to represent sounds, images,
        or binary data. Devices such as audio casette recorders,
        videocasette recorders, and computer data storage devices
        use magnetic tape as an inexpensive medium to store data.
        Different magnetically susceptible materials are used in
        such tapes.
     Magnetic telegraph, a telegraph acting by means of a
        magnet. See Telegraph.
        [1913 Webster + PJC]

From The Collaborative International Dictionary of English v.0.48 :

  magnetic storm \magnetic storm\ n.
     A sudden disturbance of the earth's magnetic field; caused by
     emission of particles from the sun.
     [WordNet 1.5]

From The Collaborative International Dictionary of English v.0.48 :

  Storm \Storm\, n. [AS. storm; akin to D. storm, G. sturm, Icel.
     stormr; and perhaps to Gr. ? assault, onset, Skr. s? to flow,
     to hasten, or perhaps to L. sternere to strew, prostrate (cf.
     Stratum). [root]166.]
     1. A violent disturbance of the atmosphere, attended by wind,
        rain, snow, hail, or thunder and lightning; hence, often,
        a heavy fall of rain, snow, or hail, whether accompanied
        with wind or not.
        [1913 Webster]
              We hear this fearful tempest sing,
              Yet seek no shelter to avoid the storm. --Shak.
        [1913 Webster]
     2. A violent agitation of human society; a civil, political,
        or domestic commotion; sedition, insurrection, or war;
        violent outbreak; clamor; tumult.
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              I will stir up in England some black storm. --Shak.
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              Her sister
              Began to scold and raise up such a storm. --Shak.
        [1913 Webster]
     3. A heavy shower or fall, any adverse outburst of tumultuous
        force; violence.
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              A brave man struggling in the storms of fate.
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     4. (Mil.) A violent assault on a fortified place; a furious
        attempt of troops to enter and take a fortified place by
        scaling the walls, forcing the gates, or the like.
        [1913 Webster]
     Note: Storm is often used in the formation of self-explained
           compounds; as, storm-presaging, stormproof,
           storm-tossed, and the like.
           [1913 Webster]
     Anticyclonic storm (Meteor.), a storm characterized by a
        central area of high atmospheric pressure, and having a
        system of winds blowing spirally outward in a direction
        contrary to that cyclonic storms. It is attended by low
        temperature, dry air, infrequent precipitation, and often
        by clear sky. Called also high-area storm,
        anticyclone. When attended by high winds, snow, and
        freezing temperatures such storms have various local
        names, as blizzard, wet norther, purga, buran,
     Cyclonic storm. (Meteor.) A cyclone, or low-area storm. See
        Cyclone, above.
     Magnetic storm. See under Magnetic.
     Storm-and-stress period [a translation of G. sturm und
        drang periode], a designation given to the literary
        agitation and revolutionary development in Germany under
        the lead of Goethe and Schiller in the latter part of the
        18th century.
     Storm center (Meteorol.), the center of the area covered by
        a storm, especially by a storm of large extent.
     Storm door (Arch.), an extra outside door to prevent the
        entrance of wind, cold, rain, etc.; -- usually removed in
     Storm path (Meteorol.), the course over which a storm, or
        storm center, travels.
     Storm petrel. (Zool.) See Stormy petrel, under Petrel.
     Storm sail (Naut.), any one of a number of strong, heavy
        sails that are bent and set in stormy weather.
     Storm scud. See the Note under Cloud.
        [1913 Webster]
     Syn: Tempest; violence; agitation; calamity.
     Usage: Storm, Tempest. Storm is violent agitation, a
            commotion of the elements by wind, etc., but not
            necessarily implying the fall of anything from the
            clouds. Hence, to call a mere fall or rain without
            wind a storm is a departure from the true sense of the
            word. A tempest is a sudden and violent storm, such as
            those common on the coast of Italy, where the term
            originated, and is usually attended by a heavy rain,
            with lightning and thunder.
            [1913 Webster]
                  Storms beat, and rolls the main;
                  O! beat those storms, and roll the seas, in
                  vain.                             --Pope.
            [1913 Webster]
                  What at first was called a gust, the same
                  Hath now a storm's, anon a tempest's name.
            [1913 Webster]

From WordNet (r) 3.0 (2006) :

  magnetic storm
      n 1: a sudden disturbance of the earth's magnetic field; caused
           by emission of particles from the sun

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