(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.
Serpentine
Definition:
(a.) Resembling a serpent; having the shape or qualities of a serpent; subtle; winding or turning one way and the other, like a moving serpent; anfractuous; meandering; sinuous; zigzag; as, serpentine braid.
(n.) A mineral or rock consisting chiefly of the hydrous silicate of magnesia. It is usually of an obscure green color, often with a spotted or mottled appearance resembling a serpent's skin. Precious, or noble, serpentine is translucent and of a rich oil-green color.
(n.) A kind of ancient cannon.
(v. i.) To serpentize.
Example Sentences:
(1) Non-occupational exposure of the population living in the vicinity of the serpentine mining and processing mill in Nasławice was assessed.
(2) In October 2013, for a group exhibition at London’s Serpentine Gallery , they published a report called Youth Mode: A Report on Freedom , one chapter of which was entitled “Normcore”.
(3) The rock consists essentially of the fibrous serpentine mineral chrysotile (asbestos) and platy serpentines.
(4) The Serpentine's Poetry Marathon talks last year gave us 47 men and 18 women, as did its Manifesto Marathon the previous year.
(5) A few details of their plans have been revealed including the indication of it being the Serpentine's lowest pavilion ever, with the roof barely 1.5 metres (5ft) off the ground.
(6) Serpentine vessels were well seen as flow voids against high signal cyst or tumor on T2-weighted images, but contrast-enhanced CT also demonstrated them.
(7) A Swiss, Hans-Ulrich Obrist, is the co-director of the Serpentine Gallery.
(8) We present a case of cerebral giant serpentine aneurysm (GSA) and propose a definition of GSA.
(9) This giant serpentine aneurysm is a rather rare disease.
(10) In 10 years, only one solo woman architect, Zaha Hadid, has sketched the Serpentine's garden tent.
(11) Multiple extremely low-intensity serpentine "flow void" signs, indicating afferent and efferent vessels, were observed within or around the tumor.
(12) But later came work as diverse as The Maybe (1995) featuring the actor Tilda Swinton lying in a glass vitrine in the Serpentine Gallery, in London; a melted silver dollar drawn into wire so thin it was as long as the Empire State Building is tall; the wrapping of Rodin's The Kiss in a mile of string; and a 40-minute video of Parker interviewing Noam Chomsky.
(13) Angiograms in each case revealed a distinctive serpentine vascular channel surrounded by an avascular area causing a "mass effect."
(14) Environmental factors: The drinking-water pool in northern California is contaminated with asbestos of the serpentine type, which is associated with mesothelioma of the peritoneum and carcinoma of the lung, gallbladder, and pancreas.
(15) A simple and effective method of temporary tarsorrhaphy, which is referred to as intermarginal serpentine temporary tarsorrhaphy, is presented.
(16) Two cases of serpentine supravenous hyperpigmentation developing in the area of fotemustine infusions are reported.
(17) In some macaque species, transcervical aspiration of the uterine contents carries a significant risk of disturbing the cervical milieu due to the serpentine nature of the cervix.
(18) Overseas, he designed the United Nations secretariat in New York, the Communist party headquarters in Paris and Serpentine gallery summer pavilion in Hyde Park, London.
(19) Turn another, and you gaze on the royal park with the glories of the Serpentine.
(20) That led to a commission from the Serpentine Gallery, and performances in Paris and Moscow.