(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.
Puddle
Definition:
(n.) A small quantity of dirty standing water; a muddy plash; a small pool.
(n.) Clay, or a mixture of clay and sand, kneaded or worked, when wet, to render it impervious to water.
(v. t.) To make foul or muddy; to pollute with dirt; to mix dirt with (water).
(v. t.) To make dense or close, as clay or loam, by working when wet, so as to render impervious to water.
(v. t.) To make impervious to liquids by means of puddle; to apply puddle to.
(v. t.) To subject to the process of puddling, as iron, so as to convert it from the condition of cast iron to that of wrought iron.
(v. i.) To make a dirty stir.
Example Sentences:
(1) The umpires allow them a different one, perhaps because the previous incumbent was wet - it landed in a puddle, where the water-sucking thing had egested, apparently.
(2) Scores of sopping-wet pedestrians have complained to police after being splashed when motorists drove through puddles, figures show.
(3) Girls continue to fetch polluted water from muddy puddles and rivers, walking past broken hand-pumps and schools they would be attending if they had the time.
(4) There are mothers in pastel hijabs, men in T-shirts and longyis, and naked children clutching on to grandparents, jostling for space among puddles and dust, held back by guards with rifles.
(5) Marcus is totally, completely, 100% not guilty, but the trauma of finding family tartare strewn around his house has inspired him to prove his innocence via moves that range from "violent shouting", "lying down in puddles covered in his wife's blood" and "escaping from police custody to run around Manchester with his hood up, punching everyone".
(6) Results are discussed in terms of chlorophyll organization in developing photosynthetic membranes with reference to the lake or puddle models of photosynthetic unit organization.
(7) In one, contrast enhanced CT demonstrated peripheral puddles of contrast medium within the mass, similar to the findings seen in cavernous hemangiomas of the liver.
(8) Aaron grew up in Chico, California, a giant hop, skip and puddle jump from Candlestick Park.
(9) But by drawing leadership from such a tiny gene puddle they reflected an aberration of the very democratic impulses and meritocratic culture with which most Americans identify and apparently cherish.
(10) The authors have made investigations about the presence of pathogen mycobacteria in puddles of rain water and in rill waters of sanitary formations and municipal slaughter-house of Yaoundé.
(11) Walking becomes an exercise in dodging mud puddles.
(12) Last week he unveiled a house in Southwark made of 10 tonnes of wax bricks, which will be heated each morning over the coming month, until is is no more than a mushy puddle on the pavement.
(13) An approximate calculation of the ratio of the power put into the boat's motion to the power lost as water movement in the oar "puddle" suggests that increasing the blade area of the oar will result in improved efficiency.
(14) It's the infrastructure – Moscow, a sprawling metropolis that is home to 11.5 million people officially, and up to 17 million unofficially, has almost no drains on its roads, leaving melting snow and mud puddles to stagnate with nowhere to go.
(15) John Torode asks ex-athlete Darren Campbell, poking a plate of puddle-water with noodles.
(16) The two most recent additions to the estate are Bumpkin and Puddle cottages, converted from an ancient farm building with thick stone walls and beamed ceilings.
(17) Seemingly spontaneous holiday larks abound; we're one puddle of purple vomit away from the dream Brits abroad weekend.
(18) Instead, the officers had to guide the way with torches, helpless to offer shelter to the tired clusters of men, women and children coming through the puddles at the side of the motorway in the darkness.
(19) He has been trailed through mud, puddles and cow pats; dropped and recovered countless times; handed back to us by supermarket security guards and kindly old ladies; washed, very rarely.
(20) The reasons for reindwelling the catheter in 6 patients were: 1) the urostoma had come to be at skin level by disturbance of blood supply for the ureter, and 2) urine puddled just on the urostoma and oozed out between the skin and Varicare flange.