Found 2 items, similar to Magnetic storm.
English → English
Definition: magnetic storm
n : a sudden disturbance of the earth's magnetic field; caused
by emission of particles from the sun
English → English
Definition: Magnetic storm
, 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.
2. Of or pertaining to, or characterized by, the earth's
magnetism; as, the magnetic north; the magnetic meridian.
3. Capable of becoming a magnet; susceptible to magnetism;
as, the magnetic metals.
4. Endowed with extraordinary personal power to excite the
feelings and to win the affections; attractive; inducing
She that had all magnetic force alone. --Donne.
5. Having, susceptible to, or induced by, animal magnetism,
so called; hypnotic; as, a magnetic sleep. See
[1913 Webster +PJC]
See under Amplitude
, a combination of bar or horseshoe magnets
with the like poles adjacent, so as to act together with
, a contrivance connected with a ship's
compass for compensating or neutralizing the effect of the
iron of the ship upon the needle.
, curves indicating lines of magnetic force,
as in the arrangement of iron filings between the poles of
a powerful magnet.
(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
, the hypothetical fluid whose existence was
formerly assumed in the explanations of the phenomena of
magnetism; -- no longer considered a meaningful concept.
, or Magnetic iron ore
. (Min.) Same as
, 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
, the two points in the opposite polar
regions of the earth at which the direction of the dipping
needle is vertical.
. See Pyrrhotite
(Terrestrial Physics), a disturbance of the
earth's magnetic force characterized by great and sudden
, a telegraph acting by means of a
magnet. See Telegraph
, 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.
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.
We hear this fearful tempest sing,
Yet seek no shelter to avoid the storm. --Shak.
2. A violent agitation of human society; a civil, political,
or domestic commotion; sedition, insurrection, or war;
violent outbreak; clamor; tumult.
I will stir up in England some black storm. --Shak.
Began to scold and raise up such a storm. --Shak.
3. A heavy shower or fall, any adverse outburst of tumultuous
A brave man struggling in the storms of fate.
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.
Note: Storm is often used in the formation of self-explained
compounds; as, storm-presaging, stormproof,
storm-tossed, and the like.
(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
. When attended by high winds, snow, and
freezing temperatures such storms have various local
names, as blizzard
, wet norther
. (Meteor.) A cyclone, or low-area storm. See
. See under Magnetic
[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
(Meteorol.), the center of the area covered by
a storm, especially by a storm of large extent.
(Arch.), an extra outside door to prevent the
entrance of wind, cold, rain, etc.; -- usually removed in
(Meteorol.), the course over which a storm, or
storm center, travels.
. (Zo["o]l.) See Stormy petrel
(Naut.), any one of a number of strong, heavy
sails that are bent and set in stormy weather.
. See the Note under Cloud
Syn: Tempest; violence; agitation; calamity.
. 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.
Storms beat, and rolls the main;
O! beat those storms, and roll the seas, in
What at first was called a gust, the same
Hath now a storm's, anon a tempest's name.