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Iron

Iron

1. to smooth with an instrument of iron; especially, to smooth, as cloth, with a heated flatiron; sometimes used with out.

2. to shackle with irons; to fetter or handcuff. Ironed like a malefactor.

3. to furnish or arm with iron; as, to iron a wagon.

Origin: Ironed; Ironing.

1. Of, or made of iron; consisting of iron; as, an iron bar, dust.

2. Resembling iron in colour; as, iron blackness.

3. Like iron in hardness, strength, impenetrability, power of endurance, insensibility, etc.; as:

Rude; hard; harsh; severe. Iron years of wars and dangers. (Rowe) Jove crushed the nations with an iron rod. (Pope)

Firm; robust; enduring; as, an iron constitution.

Inflexible; unrelenting; as, an iron will.

Not to be broken; holding or binding fast; tenacious. Him death's iron sleep oppressed.

iron is often used in composition, denoting made of iron, relating to iron, of or with iron; producing iron, etc.; resembling iron, literally or figuratively, in some of its properties or characteristics; as, iron-shod, iron-sheathed, iron-fisted, iron-framed, iron-handed, iron-hearted, iron foundry or iron-foundry. Iron age.

Common pyrites, or pyrite. See pyrites. Iron sand, an iron ore in grains, usually the magnetic iron ore, formerly used to sand paper after writing. Iron scale, the thin film which on the surface of wrought iron in the process of forging. It consists essentially of the magnetic oxide of iron, Fe3O4


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Magnetite reducing bacteria

Hello I'm interested in microorganisms that are capable of reducing magnetite (Fe3O4) or other iron oxide. I found this rather old article : http://www.ncbi.nlm.nih.gov/pubmed/11539843 This article centers around the reduction of magnetite by Shewanella, when coupled to ...

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by soungalo
Fri Dec 21, 2012 2:21 pm
 
Forum: Microbiology
Topic: Magnetite reducing bacteria
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Views: 280

Things that cause cancer (in modern humans who live longer)

... several substances that can indeed be harmful in higher concentrations that is not present in poultry or fish. Some studies indicate that heme iron, for example, could be one of these (even though iron is essential for humans, high intake of heme iron from diet for prolonged periods can be ...

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by biohazard
Thu Nov 01, 2012 7:11 am
 
Forum: Evolution
Topic: Things that cause cancer (in modern humans who live longer)
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Re: Blood is always red, never blue.

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by ablettakbar
Tue Oct 16, 2012 6:06 am
 
Forum: Human Biology
Topic: Blood is always red, never blue.
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Re:

... for the second question depends on the hemolysin in question, but most are expressed only in specific conditions. For example, the presence of iron inactivates some types of hemolysin expression in bacteria that use it to obtain iron from red blood cells. Thus, on standard blood agar these ...

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by triton
Wed Aug 22, 2012 11:53 am
 
Forum: Microbiology
Topic: Black coloration of sheep blood agar
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Views: 3100

Black coloration of sheep blood agar

... for the second question depends on the hemolysin in question, but most are expressed only in specific conditions. For example, the presence of iron inactivates some types of hemolysin expression in bacteria that use it to obtain iron from red blood cells. Thus, on standard blood agar these ...

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by biohazard
Wed Aug 22, 2012 11:27 am
 
Forum: Microbiology
Topic: Black coloration of sheep blood agar
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