slovodefinícia
Magnetic iron
(gcide)
Iron \I"ron\ ([imac]"[u^]rn), n. [OE. iren, AS. [imac]ren,
[imac]sen, [imac]sern; akin to D. ijzer, OS. [imac]sarn, OHG.
[imac]sarn, [imac]san, G. eisen, Icel. [imac]sarn, j[=a]rn,
Sw. & Dan. jern, and perh. to E. ice; cf. Ir. iarann, W.
haiarn, Armor. houarn.]
[1913 Webster]
1. (Chem.) The most common and most useful metallic element,
being of almost universal occurrence, usually in the form
of an oxide (as hematite, magnetite, etc.), or a hydrous
oxide (as limonite, turgite, etc.). It is reduced on an
enormous scale in three principal forms; viz., {cast
iron}, steel, and wrought iron. Iron usually appears
dark brown, from oxidation or impurity, but when pure, or
on a fresh surface, is a gray or white metal. It is easily
oxidized (rusted) by moisture, and is attacked by many
corrosive agents. Symbol Fe (Latin Ferrum). Atomic number
26, atomic weight 55.847. Specific gravity, pure iron,
7.86; cast iron, 7.1. In magnetic properties, it is
superior to all other substances.
[1913 Webster]

Note: The value of iron is largely due to the facility with
which it can be worked. Thus, when heated it is
malleable and ductile, and can be easily welded and
forged at a high temperature. As cast iron, it is
easily fusible; as steel, is very tough, and (when
tempered) very hard and elastic. Chemically, iron is
grouped with cobalt and nickel. Steel is a variety of
iron containing more carbon than wrought iron, but less
that cast iron. It is made either from wrought iron, by
roasting in a packing of carbon (cementation) or from
cast iron, by burning off the impurities in a Bessemer
converter (then called Bessemer steel), or directly
from the iron ore (as in the Siemens rotatory and
generating furnace).
[1913 Webster]

2. An instrument or utensil made of iron; -- chiefly in
composition; as, a flatiron, a smoothing iron, etc.
[1913 Webster]

My young soldier, put up your iron. --Shak.
[1913 Webster]

3. pl. Fetters; chains; handcuffs; manacles.
[1913 Webster]

Four of the sufferers were left to rot in irons.
--Macaulay.
[1913 Webster]

4. Strength; power; firmness; inflexibility; as, to rule with
a rod of iron.
[1913 Webster]

5. (Golf) An iron-headed club with a deep face, chiefly used
in making approaches, lifting a ball over hazards, etc.
[Webster 1913 Suppl.]

Bar iron. See Wrought iron (below).

Bog iron, bog ore; limonite. See Bog ore, under Bog.

Cast iron (Metal.), an impure variety of iron, containing
from three to six percent of carbon, part of which is
united with a part of the iron, as a carbide, and the rest
is uncombined, as graphite. It there is little free
carbon, the product is white iron; if much of the carbon
has separated as graphite, it is called gray iron. See
also Cast iron, in the Vocabulary.

Fire irons. See under Fire, n.

Gray irons. See under Fire, n.

Gray iron. See Cast iron (above).

It irons (Naut.), said of a sailing vessel, when, in
tacking, she comes up head to the wind and will not fill
away on either tack.

Magnetic iron. See Magnetite.

Malleable iron (Metal.), iron sufficiently pure or soft to
be capable of extension under the hammer; also, specif., a
kind of iron produced by removing a portion of the carbon
or other impurities from cast iron, rendering it less
brittle, and to some extent malleable.

Meteoric iron (Chem.), iron forming a large, and often the
chief, ingredient of meteorites. It invariably contains a
small amount of nickel and cobalt. Cf. Meteorite.

Pig iron, the form in which cast iron is made at the blast
furnace, being run into molds, called pigs.

Reduced iron. See under Reduced.

Specular iron. See Hematite.

Too many irons in the fire, too many objects or tasks
requiring the attention at once.

White iron. See Cast iron (above).

Wrought iron (Metal.), the purest form of iron commonly
known in the arts, containing only about half of one per
cent of carbon. It is made either directly from the ore,
as in the Catalan forge or bloomery, or by purifying
(puddling) cast iron in a reverberatory furnace or
refinery. It is tough, malleable, and ductile. When formed
into bars, it is called bar iron.
[1913 Webster]
Magnetic iron
(gcide)
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
attachment.
[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
Magnetite.

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
surveyor's.

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
changes.

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]
magnetic iron
(gcide)
Magnetite \Mag"net*ite\, n. (Min.)
An oxide of iron (Fe3O4) occurring in isometric crystals,
also massive, of a black color and metallic luster. It is
readily attracted by a magnet and sometimes possesses
polarity, being then called loadstone. It is an important
iron ore. Called also magnetic iron.
[1913 Webster]
podobné slovodefinícia
magnetic iron-ore
(encz)
magnetic iron-ore, n:
Magnetic iron
(gcide)
Iron \I"ron\ ([imac]"[u^]rn), n. [OE. iren, AS. [imac]ren,
[imac]sen, [imac]sern; akin to D. ijzer, OS. [imac]sarn, OHG.
[imac]sarn, [imac]san, G. eisen, Icel. [imac]sarn, j[=a]rn,
Sw. & Dan. jern, and perh. to E. ice; cf. Ir. iarann, W.
haiarn, Armor. houarn.]
[1913 Webster]
1. (Chem.) The most common and most useful metallic element,
being of almost universal occurrence, usually in the form
of an oxide (as hematite, magnetite, etc.), or a hydrous
oxide (as limonite, turgite, etc.). It is reduced on an
enormous scale in three principal forms; viz., {cast
iron}, steel, and wrought iron. Iron usually appears
dark brown, from oxidation or impurity, but when pure, or
on a fresh surface, is a gray or white metal. It is easily
oxidized (rusted) by moisture, and is attacked by many
corrosive agents. Symbol Fe (Latin Ferrum). Atomic number
26, atomic weight 55.847. Specific gravity, pure iron,
7.86; cast iron, 7.1. In magnetic properties, it is
superior to all other substances.
[1913 Webster]

Note: The value of iron is largely due to the facility with
which it can be worked. Thus, when heated it is
malleable and ductile, and can be easily welded and
forged at a high temperature. As cast iron, it is
easily fusible; as steel, is very tough, and (when
tempered) very hard and elastic. Chemically, iron is
grouped with cobalt and nickel. Steel is a variety of
iron containing more carbon than wrought iron, but less
that cast iron. It is made either from wrought iron, by
roasting in a packing of carbon (cementation) or from
cast iron, by burning off the impurities in a Bessemer
converter (then called Bessemer steel), or directly
from the iron ore (as in the Siemens rotatory and
generating furnace).
[1913 Webster]

2. An instrument or utensil made of iron; -- chiefly in
composition; as, a flatiron, a smoothing iron, etc.
[1913 Webster]

My young soldier, put up your iron. --Shak.
[1913 Webster]

3. pl. Fetters; chains; handcuffs; manacles.
[1913 Webster]

Four of the sufferers were left to rot in irons.
--Macaulay.
[1913 Webster]

4. Strength; power; firmness; inflexibility; as, to rule with
a rod of iron.
[1913 Webster]

5. (Golf) An iron-headed club with a deep face, chiefly used
in making approaches, lifting a ball over hazards, etc.
[Webster 1913 Suppl.]

Bar iron. See Wrought iron (below).

Bog iron, bog ore; limonite. See Bog ore, under Bog.

Cast iron (Metal.), an impure variety of iron, containing
from three to six percent of carbon, part of which is
united with a part of the iron, as a carbide, and the rest
is uncombined, as graphite. It there is little free
carbon, the product is white iron; if much of the carbon
has separated as graphite, it is called gray iron. See
also Cast iron, in the Vocabulary.

Fire irons. See under Fire, n.

Gray irons. See under Fire, n.

Gray iron. See Cast iron (above).

It irons (Naut.), said of a sailing vessel, when, in
tacking, she comes up head to the wind and will not fill
away on either tack.

Magnetic iron. See Magnetite.

Malleable iron (Metal.), iron sufficiently pure or soft to
be capable of extension under the hammer; also, specif., a
kind of iron produced by removing a portion of the carbon
or other impurities from cast iron, rendering it less
brittle, and to some extent malleable.

Meteoric iron (Chem.), iron forming a large, and often the
chief, ingredient of meteorites. It invariably contains a
small amount of nickel and cobalt. Cf. Meteorite.

Pig iron, the form in which cast iron is made at the blast
furnace, being run into molds, called pigs.

Reduced iron. See under Reduced.

Specular iron. See Hematite.

Too many irons in the fire, too many objects or tasks
requiring the attention at once.

White iron. See Cast iron (above).

Wrought iron (Metal.), the purest form of iron commonly
known in the arts, containing only about half of one per
cent of carbon. It is made either directly from the ore,
as in the Catalan forge or bloomery, or by purifying
(puddling) cast iron in a reverberatory furnace or
refinery. It is tough, malleable, and ductile. When formed
into bars, it is called bar iron.
[1913 Webster]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
attachment.
[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
Magnetite.

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
surveyor's.

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
changes.

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]Magnetite \Mag"net*ite\, n. (Min.)
An oxide of iron (Fe3O4) occurring in isometric crystals,
also massive, of a black color and metallic luster. It is
readily attracted by a magnet and sometimes possesses
polarity, being then called loadstone. It is an important
iron ore. Called also magnetic iron.
[1913 Webster]
Magnetic iron ore
(gcide)
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
attachment.
[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
Magnetite.

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
surveyor's.

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
changes.

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]
magnetic iron-ore
(gcide)
magnetic iron-ore \magnetic iron-ore\ n.
Magnetite.
[WordNet 1.5]
magnetic iron-ore
(wn)
magnetic iron-ore
n 1: an oxide of iron that is strongly attracted by magnets
[syn: magnetite, magnetic iron-ore]

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