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iron

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i⋅ron

  [ahy-ern]
Use iron in a Sentence
–noun
1. Chemistry. a ductile, malleable, silver-white metallic element, scarcely known in a pure condition, but much used in its crude or impure carbon-containing forms for making tools, implements, machinery, etc. Symbol: Fe; atomic weight: 55.847; atomic number: 26; specific gravity: 7.86 at 20°C. Compare cast iron, pig iron, steel, wrought iron.
2. something hard, strong, rigid, unyielding, or the like: hearts of iron.
3. an instrument, utensil, weapon, etc., made of iron.
4. an appliance with a flat metal bottom, used when heated, as by electricity, to press or smooth clothes, linens, etc.
5. Golf. one of a series of nine iron-headed clubs having progressively sloped-back faces, used for driving or lofting the ball. Compare wood 1 (def. 8).
6. a branding iron.
7. any of several tools, structural members, etc., of metals other than iron.
8. the blade of a carpenter's plane.
9. Slang. a pistol.
10. a harpoon.
11. Medicine/Medical. a preparation of iron or containing iron, used chiefly in the treatment of anemia, or as a styptic and astringent.
12. irons, shackles or fetters: Put him in irons!
13. a sword.
–adjective
14. of, containing, or made of iron: an iron skillet.
15. resembling iron in firmness, strength, color, etc.: an iron will.
16. stern; harsh; cruel.
17. inflexible; unrelenting.
18. strong; robust; healthy.
19. holding or binding strongly: an iron grip.
20. irritating or harsh in tone: an iron voice.
–verb (used with object)
21. to smooth or press with a heated iron, as clothes or linens.
22. to furnish, mount, or arm with iron.
23. to shackle or fetter with irons.
24. Metalworking. to smooth and thin the walls of (an object being deep-drawn).
–verb (used without object)
25. to press clothes, linens, etc., with an iron.
—Verb phrase
26. iron out,
a. to iron or press (an item of clothing or the like).
b. to remove (wrinkles) from by ironing.
c. to resolve or clear up (difficulties, disagreements, etc.): The problem was ironed out months ago.
—Idioms
27. in irons,
a. Nautical. (of a sailing vessel) unable to maneuver because of the position of the sails with relation to the direction of the wind.
b. Nautical. (of a towing vessel) unable to maneuver because of tension on the towing line.
c. Also, into irons. in shackles or fetters.
28. irons in the fire, matters with which one is immediately concerned; undertakings; projects: He had other irons in the fire, so that one failure would not destroy him.
29. pump iron, to lift weights as an exercise or in competition.
30. strike while the iron is hot, to act quickly when an opportunity presents itself.
Origin:
bef. 900; ME, OE īren (n. and adj.), perh. < *īsren, metathesized from īsern, var. of īsen; cf. OS, OHG, ON īsarn, Goth eisarn < Gmc *īsarnam, perh. < Celtic; cf. Gaulish Ysarno-, Iserno- (in place names), OBreton hoiarn, Welsh haearn, OIr íarn

Related forms:
i⋅ron⋅less, adjective
i⋅ron⋅like, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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i·ron   (ī'ərn)   
n.  

  1. Symbol Fe A silvery-white, lustrous, malleable, ductile, magnetic or magnetizable, metallic element occurring abundantly in combined forms, notably in hematite, limonite, magnetite, and taconite, and used alloyed in a wide range of important structural materials. Atomic number 26; atomic weight 55.845; melting point 1,535°C; boiling point 2,750°C; specific gravity 7.874 (at 20°C); valence 2, 3, 4, 6. See Table at element.

  2. An implement made of iron alloy or similar metal, especially a bar heated for use in branding, curling hair, or cauterizing.

  3. Great hardness or strength; firmness: a will of iron.

  4. Sports Any of a series of golf clubs having a bladelike metal head and numbered from one to nine in order of increasing loft.

  5. A metal appliance with a handle and a weighted flat bottom, used when heated to press wrinkles from fabric.

  6. A harpoon.

  7. irons Fetters; shackles.

  8. A tonic, pill, or other medication containing iron and taken as a dietary supplement.

adj.  

  1. Made of or containing iron: iron bars; an iron alloy.

  2. Strong, healthy, and capable of great endurance: an iron constitution.

  3. Inflexible; unyielding: iron resolve.

  4. Holding tightly; very firm: has an iron grip.

v.   i·roned, i·ron·ing, i·rons

v.   tr.

    1. To press and smooth with a heated iron: iron clothes.

    2. To remove (creases) by pressing.

  2. To put into irons; fetter.

  3. To fit or clad with iron.

v.   intr.
To iron clothes.
Phrasal Verb(s):
iron outTo settle through discussion or compromise; work out.

Idiom(s):
in irons Nautical Lying head to the wind and unable to turn either way.

Idiom(s):
iron in the fireAn undertaking or project in progress: has many irons in the fire this year.

[Middle English iren, from Old English īren; see eis- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang Dictionary
iron

  1. n.
    a gun; a revolver. (Underworld.) : Rocko never carries iron unless he's going to use it.
  2. n.
    computer hardware. (See also big iron.) : What kind of iron are you people running over there?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Word Origin & History

iron 
O.E. isærn (with M.E. rhotacism of -s-), from P.Gmc. *isarnan (cf. O.S. isarn, O.N. isarn, M.Du. iser, O.H.G. isarn, Ger. Eisen) "holy metal" or "strong metal" (in contrast to softer bronze) probably an early borrowing of Celt. *isarnon (cf. O.Ir. iarn, Welsh haiarn), from PIE *is-(e)ro- "powerful, holy," from PIE *eis "strong" (cf. Skt. isirah "vigorous, strong," Gk. ieros "strong"). The verb meaning "press clothes" (with a heated flat-iron) is first recorded 1680; ironing board is from 1843.
"Right so as whil that Iren is hoot men sholden smyte." [Chaucer, c.1386]
To have (too) many irons in the fire "to be doing too much at once" is from 1549. Iron lung "artificial respiration tank" is from 1932. Ironside, name given to a man of great hardihood or bravery (1297) first applied to Edmund II, king of England (d.1016), later also to Oliver Cromwell and his troops.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: iron
Pronunciation: 'I(-&)rn
Function: noun
1 : a heavy malleable ductile magnetic silver-white metallic element that readily rustsin moist air, occurs native in meteorites and combined in most igneous rocks, is the most used of metals, and is vital to biological processes (as in transport of oxygen in the body) —symbolFe; —see ELEMENT table
2 : iron chemically combined <iron in the blood> —iron adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

iron i·ron (ī'ərn)
n.


  1. Symbol Fe A lustrous, malleable, ductile, magnetic or magnetizable metallic element. Atomic number 26; atomic weight 55.847; melting point 1,538°C; boiling point 2,860°C; specific gravity 7.874 (at 20°C); valence 2, 3, 4, 6.

  2. A pill or other medication containing iron and taken as a dietary supplement.

adj.
Made of or containing iron.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Computing 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.
[The Jargon File]
(1994-11-04)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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Bible Dictionary

Iron

Tubal-Cain is the first-mentioned worker in iron (Gen. 4:22). The Egyptians wrought it at Sinai before the Exodus. David prepared it in great abundance for the temple (1 Chr. 22:3: 29:7). The merchants of Dan and Javan brought it to the market of Tyre (Ezek. 27:19). Various instruments are mentioned as made of iron (Deut. 27:5; 19:5; Josh. 17:16, 18; 1 Sam. 17:7; 2 Sam. 12:31; 2 Kings 6:5, 6; 1 Chr. 22:3; Isa. 10:34). Figuratively, a yoke of iron (Deut. 28:48) denotes hard service; a rod of iron (Ps. 2:9), a stern government; a pillar of iron (Jer. 1:18), a strong support; a furnace of iron (Deut. 4:20), severe labour; a bar of iron (Job 40:18), strength; fetters of iron (Ps. 107:10), affliction; giving silver for iron (Isa. 60:17), prosperity.

Easton's 1897 Bible Dictionary
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Idioms & Phrases

iron

In addition to the idioms beginning with iron, also see pump iron; strike while the iron's hot.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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