Definitions for IRONˈaɪ ərn

Random House Webster's College Dictionary

i•ronˈaɪ ərn(n.)

a ductile, malleable, silver-white metallic element, used in its impure carbon-containing forms for making tools, implements, machinery, etc.
Category: Chemistry
Ref: Symbol: Fe 1
something hard, strong, unyielding, or the like:
hearts of iron.
an instrument, utensil, weapon, etc., made of iron.
an appliance with a flat metal bottom, used when heated, as by electricity, to press or smooth clothes, linens, etc.
any of a series of nine iron-headed golf clubs having progressively sloped-back faces, used for driving or lofting the ball.
Category: Sport
Ref: Compare wood1 (def. 6). 1 1 8
a branding iron.
a harpoon.
irons, shackles or fetters.
a sword.
(adj.)of, containing, or made of iron.
resembling iron in firmness, strength, color, etc.
stern; harsh; cruel.
inflexible; unrelenting.
strong; robust; healthy.
holding or binding strongly:
an iron grip.
(v.t.)to smooth or press with a heated iron, as clothes or linens.
to furnish, mount, or arm with iron.
to shackle or fetter with irons.
(v.i.)to press clothes, linens, etc., with an iron.
iron out, to resolve or clear away (difficulties, etc.).
Category: Verb Phrase

Idioms for iron:

irons in the fire,undertakings; projects.
Category: Idiom

Origin of iron:

bef. 900; ME, OE īren

Princeton's WordNet

iron, Fe, atomic number 26(noun)
a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
iron(noun)
a golf club that has a relatively narrow metal head
iron, branding iron(noun)
implement used to brand live stock
iron, smoothing iron(adj)
home appliance consisting of a flat metal base that is heated and used to smooth cloth
cast-iron, iron(verb)
extremely robust
"an iron constitution"
iron, iron out, press(verb)
press and smooth with a heated iron
"press your shirts"; "she stood there ironing"

Kernerman English Learner's Dictionary

iron(noun)ˈaɪɚn
a metal used to make steel and necessary for a good diet
***a gate made of iron; 400 mg of iron in the vitamin
ironˈaɪɚn
a device using heat to press clothes flat
a steam iron
iron(verb)ˈaɪɚn
to use an iron to press clothes flat
to iron a shirt
iron(adjective)ˈaɪɚn
made of iron
an iron bar
ironˈaɪɚn
very strong or determined
his iron constitution

Wiktionary

iron(Verb)
To pass an iron over (clothing or some other item made of cloth) in order to remove creases.
iron(Adjective)
Made of the metal iron.
iron(Adjective)
Strong (as of will), inflexible.

Webster Dictionary

Iron(noun)
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 weight 55.9. Specific gravity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is superior to all other substances
Iron(noun)
an instrument or utensil made of iron; -- chiefly in composition; as, a flatiron, a smoothing iron, etc
Iron(noun)
fetters; chains; handcuffs; manacles
Iron(noun)
strength; power; firmness; inflexibility; as, to rule with a rod of iron
Iron(noun)
of, or made of iron; consisting of iron; as, an iron bar, dust
Iron(noun)
resembling iron in color; as, iron blackness
Iron(noun)
like iron in hardness, strength, impenetrability, power of endurance, insensibility, etc.;
Iron(noun)
rude; hard; harsh; severe
Iron(noun)
firm; robust; enduring; as, an iron constitution
Iron(noun)
inflexible; unrelenting; as, an iron will
Iron(noun)
not to be broken; holding or binding fast; tenacious
Iron(verb)
to smooth with an instrument of iron; especially, to smooth, as cloth, with a heated flatiron; -- sometimes used with out
Iron(verb)
to shackle with irons; to fetter or handcuff
Iron(verb)
to furnish or arm with iron; as, to iron a wagon

The New Hacker's Dictionary

iron
Hardware, especially older and larger hardware of mainframe class with big metal cabinets housing relatively low-density electronics (but the term is also used of modern supercomputers). Often in the phrase big iron. Oppose silicon. See also dinosaur.

U.S. National Library of Medicine

Iron
A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.