(n.) A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron.
(n.) A compound or salt of chromous hydroxide regarded as an acid.
Example Sentences:
(1) Prevalence of respiratory symptoms and chronic bronchitis was determined in a group of 122 subjects (77 exposed miners, 18 partially exposed, 27 controls) working at chromite ore mines in Sudan.
(2) Chromium is found in nature principally as the chromite ore FeCr2O4 in which chromium is in the +3 state.
(3) Airborne Cr(VI) emissions are associated with a number of industrial sources including metal plating, tanning, chromite ore processing, and spray painting operations; combustion sources such as automobiles and incinerators; and fugitive dusts from contaminated soil.
(4) I give below a few instances where a large number of innocent people were killed by US drone strikes in Pakistani tribal areas: 13 January 2006 – Five women, five children and six men killed in Damadola, Bajaur tribal region; 30 October 2006 – 80 children killed in drone strike on a seminary in Chingai village; 23 June 2009 – 60 people killed in a drone strike on a funeral; 17 March 2011 – 41 innocent civilians killed in drone strikes on a tribal jirga called to settle a chromite mine dispute.
(5) Millions of tons of chromite-ore processing residue have been used as fill in various locations in Northern New Jersey and elsewhere in the United States.
(6) The trivalent, poorly soluble, cupric chromite was nearly as efficient crosslinker as hexavalent Cr, perhaps because phagocytosis facilitated its entry into the cells.
(7) Between 1905 and 1971, over 2 million tons of residue from chromite ore processing was generated in Hudson County, New Jersey, of which substantial amounts were used as fill and tank diking.
(8) Chromite ore processing residue occurs at over 130 sites in Hudson County, New Jersey.
(9) Insoluble chromite, as tested in the spot test, was spontaneously mutagenic, owing to contamination of the industrial product with hexavalent chromium.
(10) Approximately 40 commercial and industrial properties in Northern New Jersey have been identified as containing chromite ore processing residue in the soil.
(11) Also, the mutagenic activity of Cr(VI), contaminating an industrial Cr(III) pigment (chromite), was slightly enhanced by NTA.
(12) A cytogenetic analysis was carried out on peripheral blood lymphocytes of workers exposed to chromite in a ferrochromium plant, to evaluate the possible existence of genetic damage.
(13) "Militias implicated in human rights abuses have already been profiting from chromite and other resources.
(14) A possibility of chromium reducing bacteria being involved in the conversion of crocoite to chromite in the oxidation zone of chromite deposits is discussed.
(15) The relationship between employment in industries producing chromium compounds from chromite ore and lung cancer has been well established in numerous studies.
(16) Millions of tons of chromite-ore processing residue have been used as fill in various locations in northern New Jersey and elsewhere in the United States.
(17) There is general agreement that chromite ore does not have an associated risk of cancer.
(18) Local police commanders in eastern Kunar have been extracting chromite without licenses but with foreign help, a recent report from Integrity Watch Afghanistan warned, while a coal tender to a Chinese firm in central Bamiyan left locals out of work and winter fuel .
Iron
Definition:
(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.