(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.
Paco
Definition:
(n.) Alt. of Pacos
Example Sentences:
(1) It is unacceptable in this city for us to play like that in a game of such importance to the people, against your local rivals that are at the bottom of the league, who fought for every single ball and we weren’t good enough.” Valencia’s captain, Paco Alcacer, also gave a scathing assessment of the team’s insipid performance.
(2) Failure to maintain compensatory hyperventilation during anaesthesia in patients with metabolic acidosis results in an increase in PaCO(2), fall in blood pH, and a possible rise in plasma potassium.
(3) Failure of passive transfer (FPT) of immunoglobulin from colostrum was demonstrated as a major determinant of mortality in newborn alpacas (Lama pacos; crias).
(4) Steady state estimates of the pulmonary diffusing capacity for carbon monoxide (DLCO) require measurement of the uptake and the average alveolar partial pressure of carbon monoxide (PACO).
(5) Chelsea overcome nerves to top group and move into last 16 at Porto’s expense Read more Although Paco Alcácer drew a save from Anthony Lopes, Lyon were the better side, allowed to travel a long way when they came forward, and it was not a huge surprise when Cornet scored.
(6) tan additional source of error in choosing PACO arises in the sampling time chosen by the experimental method.
(7) During thiopental anesthesia, marked respiratory depression occurred (PaCO-2:57.0 plus or minus 10.0 MM Hg, PaO-2:70.4 plus or minus 11.2 MM Hg).
(8) It has become common practice to subtract 6 mm Hg from the Pvco(2) to obtain the Paco(2) but there are many circumstances in which this leads to an overestimate of the Paco(2).
(9) At hypocapnia (PaCO(2) 20-21 mmHg) the gradients of fall in the CBF were similar before and after ipsilateral carotid ligation; after bilateral carotid ligation there was minimal change in the CBF in response to the fall in the PaCO(2).
(10) These studies also showed that the Pvco(2) - Paco(2) difference may be much wider, particularly in the presence of arterial unsaturation and a low cardiac output.The factors governing the venoarterial Pco(2) difference are reviewed and their magnitude is calculated to emphasize the complementary roles of measurements of Pvco(2) and Paco(2) in the assessment of patients with cardiorespiratory disease.
(11) Alan Pardew's squad will head for Motherwell on Tuesday, 16 July before jetting off to Portugal for a training camp which will include fixtures against Primeira Liga duo Rio Ave and Pacos de Ferreira on 20 and 23 July respectively.
(12) One minute and 11 seconds passed between Bale’s superb looping effort hitting the net and Paco Alcácer reaching Rodrigo’s nod down to head past Keylor Navas and make it 2-2.
(13) An invasive form of aspergillosis in an alpaca (Lama pacos) is described, with dissemination causing small abscesses and multifocal areas of necrosis in the lung, heart, spleen and kidneys.
(14) Minute ventilation and PAco were within a normal range before medication in both groups, but the slope of the CO2 response curve was decreased, indicating mild-to-moderate respiratory depression.
(15) Twenty-two patients with chronic productive bronchitis or bronchiectasis were treated by direct instillations of normal saline and N-acetylcysteine into the trachea through a percutaneous catheter following a period of conventional routine therapy.The instillation, using either normal saline or varying concentrations of N-acetylcysteine did not produce significant change in alveolar gas exchange as reflected by measurement of arterial PaCO(2) and the alveolar arterial gradient for oxygen during and after the introduction of the medication into the bronchial tree.
(16) It is concluded that with Paco-2 constant at 40 torr morphine-nitrous oxide anesthesia does not significantly affect cerebral autoregulation in normal man.
(17) Ukraine went close to an equaliser when Andriy Yarmolenko struck a shot against the frame of the goal in the 51st minute before Paco Alcácer was denied by another fine Pyatov save.
(18) But it's hard to believe you are taking part in a countercultural happening when it is sponsored by Paco Rabanne and broadcast live on the BBC.
(19) Then, a moment after that, Paco Alcácer’s shot was deflected wide.
(20) The effect of nitrazepam on ventilatory capacity and arterial blood gas tensions was studied in a double-blind controlled crossover trial in six patients with chronic obstructive bronchitis in ventilatory failure (raised Paco(2)).