(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.
Weapon
Definition:
(n.) An instrument of offensive of defensive combat; something to fight with; anything used, or designed to be used, in destroying, defeating, or injuring an enemy, as a gun, a sword, etc.
(n.) Fig.: The means or instrument with which one contends against another; as, argument was his only weapon.
(n.) A thorn, prickle, or sting with which many plants are furnished.
Example Sentences:
(1) One hundred and twenty-seven states have said with common voice that their security is directly threatened by the 15,000 nuclear weapons that exist in the arsenals of nine countries, and they are demanding that these weapons be prohibited and abolished.
(2) True, Syria subsequently disarmed itself of chemical weapons, but this was after the climbdown on bombing had shown western public opinion had no appetite for another war of choice.
(3) Terrorist groups need to be tackled at root, interdicting flows of weapons and finance, exposing the shallowness of their claims, channelling their followers into democratic politics.
(4) China's relations with the NTC were strained last week when it emerged Chinese arms firms had talked to Muammar Gaddafi's representatives about weapons sales .
(5) The weapon is 13 metres long, weighs 60 tonnes and can carry nuclear warheads with up to eight times the destructive capacity of the bombs that hit Hiroshima and Nagasaki in the second world war.
(6) Types of weapons involved included handguns (48%), shotguns (22%), rifles (17%), unspecified weapon (12%), and air rifle (1%).
(7) These steps signify a willingness for engagement not seen before, but they have been overshadowed by the "nuclear crisis" triggered in October 2002 when Pyongyang admitted to having the "know-how", but not the technology, for a highly enriched uranium route to nuclear weapons.
(8) The UN secretary general, Ban Ki-moon, a former South Korean foreign minister, said the resolution "sent an unequivocal message to [North Korea] that the international community will not tolerate its pursuit of nuclear weapons."
(9) It paves the way for Iran to get nuclear weapons.” Under the deal, Iran committed to reducing the number of its centrifuges by two-thirds, capping its level of uranium enrichment well below the level needed for bomb-grade material, reducing its enriched uranium stockpile from around 10,000kg to 300kg for 15 years, and submitting to international inspections to verify its compliance.
(10) He was indicted on weapons charges and accused of plotting robberies and the assassination of the Southern Poverty Law Center’s founder.
(11) Even a Scrabble board is used as a weapon in our show.
(12) The most efficient weapon against cancer is early diagnosis.
(13) BUSH ON IRAQ TONIGHT: Mr President, if I can move on to the question of Iraq, when we last spoke before the Iraq war, I asked you about Saddam Hussein and you said this, and I quote: "He harbours and develops weapons of mass destruction, make no mistake about it."
(14) The Met said officers would be told to focus less on stopping people for small amounts of cannabis, and instead focus on those suspected of violent offences and carrying weapons.
(15) And an increasing number of critics say that no nuclear weapon would be a credible deterrent in any counter-terrorist operation British forces will be engaged in for the foreseeable future.
(16) Waco, Texas, will forever be known for the siege that began in February 1993 when agents of the Bureau of Alcohol, Tobacco and Firearms raided a compound owned by the Branch Davidian religious sect to investigate allegations of weapons hoarding.
(17) Six major Saudi-led coalition attacks in Yemen in 2016 – timeline Read more Asked by the Guardian about the figures during a visit to London, the Saudi foreign minister, Adel bin Ahmed al-Jubeir, portrayed the Saudi air force as professional and armed with precision weapons.
(18) He saw a soldier aim his weapon’s laser sight at the al-Atrashes’ Volkswagen “like he was preparing to shoot”.
(19) Britain is being urged to halt the supply of weapons to its ally Saudi Arabia in the light of evidence that civilians are being killed in Saudi-led attacks on rebel forces in Yemen .
(20) Kerry warned a sceptical and sometimes raucous panel that failing to strike Syria would embolden al-Qaida and raise to 100% the chances that Assad would use chemical weapons again.