(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.
Norman
Definition:
(n.) A wooden bar, or iron pin.
(a.) Of or pertaining to Normandy or to the Normans; as, the Norman language; the Norman conquest.
(n.) A native or inhabitant of Normandy; originally, one of the Northmen or Scandinavians who conquered Normandy in the 10th century; afterwards, one of the mixed (Norman-French) race which conquered England, under William the Conqueror.
Example Sentences:
(1) We are prepared to be honest with people and say that we will all need to chip in a little more.” The party’s health spokesman, Norman Lamb, said: “The NHS was once the envy of the world and this pledge is the first step in restoring it to where it should be.
(2) The then party whip, Norman Lamb, who is now a health minister, expressed his reservations at the time, although Clegg was able to restore his authority by forcing through changes to the original bill.
(3) These data indicate that hallucinations (i.e., believed-in imaginings) can be elicited from a minority of "norman" subjects with brief instructions.
(4) In the request for reconsideration, Gissendaner’s lawyers cite a statement from former Georgia supreme court chief justice Norman Fletcher, who argues that Gissendaner’s death sentence is not proportionate to her role in the crime.
(5) Other controversial voices were Barry Norman, who wondered if Williams’s battles with mental health led him to take on sentimental film projects, and the Academy of Motion Picture Arts and Sciences, whose tweet reading “Genie, you’re free” was seen as glorifying suicide .
(6) New ITV chairman Archie Norman will launch a strategy review this month as he seeks to "accelerate the transformation" of the broadcaster.
(7) Norman also once again dismissed any notion that ITV would look at selling off its programme-making operation, despite reports that some shareholders would like to see that happen .
(8) They’re peculiarly British but the appeal of the humour and the ever-present message that good people always win is absolutely global.” “These films are a part of British culture and to be carrying on the legacy of [original Carry On writers] Norman Hudis and Talbot Rothwell is a thrill and a responsibility,” said Dawson.
(9) At a press conference in New York , Norman Siegel, lawyer for Eunice Huthart, Angelina Jolie's sometime stunt double, said they had spoken to a number of people who claim they have been hacked by journalists working for News Corp.
(10) But Rubio’s Pac, Reclaim America, hopes to benefit from wealthy individual donors including the Miami car dealer Norman Braman, the former owner of the Philadelphia Eagles, who is believed to have pledged at least $10m.
(11) Facebook Twitter Pinterest ‘I’m Jewish but I see him as being a very inclusive kind of person that could really unite this country,’ said Norman Kayton, with his wife, Ellen.
(12) The observation of generalized GM1 gangliosidosis type 1 (Norman-Landing disease) is reported.
(13) The same refusal to back down characterised his dispute with Norman Mailer, whose attitudes towards women had brought rebukes from Gloria Steinem and Kate Millett.
(14) Garrett, C. Clayberger, A.M. Krensky, A.M. Norman, D.R.
(15) Archie Norman , ITV's chairman, said Crozier, who is the former head of the Football Association, had the "steely resolve we need at ITV", which was looking for a "great leader".
(16) Just a short stroll from the start of this walk, the Norman Lockyer Observatory still holds two of his telescopes.
(17) This pressure, by a letters campaign to the FCO, was initiated by Architects and Planners for Justice in Palestine with human rights organisation Adalah-New York , followed by the Palestine Solidarity Campaign, Noam Chomsky, Norman Finkelstein, former BBC correspondent Tim Llewellyn and hundreds of others.
(18) ITV said that Archie Norman, the former Tory MP and party chief executive, had not had any direct involvement with the programme.
(19) Equally, the award made to Norman Foster's striking 30 St Mary Axe (aka the Gherkin) was at a time when there was great excitement about the latest development in new City skyscrapers, an excitement somewhat deflated now that City money appears to be as trustworthy as a Bob Maxwell pension scheme.
(20) Imagine if our Norman had been born in Calcutta and chosen to live in India.