(n.) 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.
(n.) An instrument or utensil made of iron; -- chiefly in composition; as, a flatiron, a smoothing iron, etc.
(n.) Fetters; chains; handcuffs; manacles.
(n.) Strength; power; firmness; inflexibility; as, to rule with a rod of iron.
(n.) Of, or made of iron; consisting of iron; as, an iron bar, dust.
(n.) Resembling iron in color; as, iron blackness.
(n.) Like iron in hardness, strength, impenetrability, power of endurance, insensibility, etc.;
(n.) Rude; hard; harsh; severe.
(n.) Firm; robust; enduring; as, an iron constitution.
(n.) Inflexible; unrelenting; as, an iron will.
(n.) Not to be broken; holding or binding fast; tenacious.
(v. t.) To smooth with an instrument of iron; especially, to smooth, as cloth, with a heated flatiron; -- sometimes used with out.
(v. t.) To shackle with irons; to fetter or handcuff.
(v. t.) To furnish or arm with iron; as, to iron a wagon.
Example Sentences:
(1) The hypothesis that proteins are critical targets in free radical mediated cytolysis was tested using U937 mononuclear phagocytes as targets and iron together with hydrogen peroxide to generate radicals.
(2) The most successful dyes were phenocyanin TC, gallein, fluorone black, alizarin cyanin BB and alizarin blue S. Celestin blue B with an iron mordant is quite successful if properly handled to prevent gelling of solutions.
(3) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
(4) The specific activities of extracts from cells grown under phototrophic and aerobic conditions were similar and not affected by the concentration of iron in the growth media.
(5) In the 153 women to whom iron supplements were given during pregnancy, the initial fall in haemoglobin concentration was less, was arrested by 28 weeks gestation and then rose to a level equivalent to the booking level.
(6) Typically the iron-iron axis (gz) of the binuclear iron-sulfur clusters is in the membrane plane.
(7) Increased iron levels in basal ganglia were generally associated with normal or elevated levels of ferritin immunoreactivity, for example, the substantia nigra in PSP and possibly MSA, and in putamen in MSA.
(8) Lead levels in contents and shells of eggs laid by hens dosed with all-lead shot were about twice those in eggs laid by hens dosed with lead-iron shot.
(9) Dietary factors affect intestinal P450s markedly--iron restriction rapidly decreased intestinal P450 to beneath detectable values; selenium deficiency acted similarly but was less effective; Brussels sprouts increased intestinal AHH activity 9.8-fold, ECOD activity 3.2-fold, and P450 1.9-fold; fried meat and dietary fat significantly increased intestinal EROD activity; a vitamin A-deficient diet increased, and a vitamin A-rich diet decreased intestinal P450 activities; and excess cholesterol in the diet increased intestinal P450 activity.
(10) Since iron from fortified formulas is well absorbed during the first three months of life, even if it is not immediately used for hemoglobin formation, an inccrease in the iron stores will occur...
(11) Dietary intakes, measured by three 24-hour recalls, revealed that protein, iron and Vitamin C generally met or exceeded the Nutrition Recommendations for age.
(12) This is a struggle for the survival of our nation.” As ever, after Trump’s media dressing-down, his operation was quick to fit a velvet glove to an iron fist.
(13) Ten weeks of iron therapy was not, however, long enough to increase iron stores.
(14) With both approaches, carbohydrate and fat had little influence whereas egg albumin had a significant inhibitory effect on the absorption of nonheme iron.
(15) The protein quality and iron bioavailability of mechanically deboned turkey meat (MDT) and hand-deboned turkey meat (HDT) were determined in rats.
(16) Serum levels of vitamins A and E, zinc and iron were determined in healthy control subjects and lepromatous leprosy patients belonging to an eastern state of India.
(17) Ferric iron in aqueous solution was used as an iron-only control.
(18) The implications of inhibition of protein kinase C by adriamycin-iron(III) are discussed.
(19) The duodenal mucosa of genotypically normal iron replete and iron deficient mice and mice with sex-linked (sla) and microcytic anemias (mk) was examined for the presence of iron-binding proteins.
(20) Ferredoxin reductase (Fd-reductase) supplies reducing equivalents obtained from NADPH to mitochondrial cytochrome P450 enzymes via the small iron-sulfur protein ferredoxin.
Ironwork
Definition:
(n.) Anything made of iron; -- a general name of such parts or pieces of a building, vessel, carriage, etc., as consist of iron.
Example Sentences:
(1) To assess such risk, a clinical survey was conducted on 869 ironworkers from the New York metropolitan area.
(2) Although ex-smokers appeared to have the highest prevalence of abnormalities, regression analyses showed that duration of employment in the ironworkers' trade was the most important factor associated with them.
(3) We describe a series of 14 cases of lead poisoning in ironworkers cutting a lead-painted bridge in New York City.
(4) The clinical, biochemical, and haematological aspects of a recent outbreak of lead poisoning, in which exposure was related to the oxyacetylene cutting of red lead painted ironwork, were investigated.
(5) It has opened 30-odd highly successful bars – bare brick, exposed ironwork, spray-painted graffiti – across the UK, from Aberdeen to Bristol and Manchester to Clerkenwell.
(6) We’re just going to throw it up against the wall and see if it sticks.” Whether it sticks or not, you can be sure there will be one thing all of those shipyards and ironworks will feature, beginning with a capital T. Normally half a trillion in public spending is the kind of thing that Republicans should balk at.
(7) The co-operation of the then prime minister John Howard and then leader of the ironworkers’ union, Maurie Rudd, played a significant role in Newcastle’s recovery as they commissioned an investigation into the impact on the region.
(8) 300 workers of metalurgical plant exposed to vibrations were divided according to the chief work tool into the three groups: 1) moulder, 2) mould cleaner and 3) ironworker--grinder.
(9) To treat these the East-Slovakian Ironworks has organised preventive measures.
(10) But Britain had been largely deforested by 4000BC – contrary to commonly held myths about shipbuilding and ironworks removing our woodlands.
(11) A case of crush injury to the lower extremities of an ironworker involved in the demolition of a bridge is presented.
(12) This curious distortion, coupled with a subdued palette, earned “The Four” the rather derisory title of “The Spook School.” They continued to work together for many years, designing everything from posters and book bindings to furniture, panels, and ironwork, and also taking part in exhibitions at home and abroad.
(13) Fitting it proved a bit of a long-winded affair and, at just under £300, slightly more expensive than planned because we had to wait for a local ironworks to cut us a plate on which it would sit.
(14) So Mr Lansley resembles a bungee jumper who has thrown himself off the bridge and now finds himself hurtling upwards, terrified of banging his head on the ironwork.
(15) Despite this the prognosis of these injuries is very poor, as apparent from an analysis of 36 patients hospitalized in 1981-1986 in the Centre for the Treatment of Burns in the Factory Institute for National Health in the East Slovakia Ironworks, which serves the entire Slovak territory; the patients were examined and treated in collaboration with the ENT department of the Factory Institute for National Health of the East Slovakian Ironworks.
(16) The combined effect of smoking and employment in ironworks showed a good fit to an additive model, while that in the "other plants" category was closer to a multiplicative model.
(17) The local ironworks closed in the 60s, the steelworks in the 80s.
(18) The workers in shipbuilding, ironworks and other plants (mostly chemical plants) showed statistically significant increases in lung cancer risk with relative risks of 6.18, 2.02, and 2.66, respectively.
(19) The puck his the ironwork - huge chance there for LA!.
(20) On one wall is a series of Victorian photographs of anonymous female ironworkers from south Wales, who look startled and exhausted after a day’s work of breaking rocks, entitled The Shit Old Days.