(a.) Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower valence; as, ferrous sulphate.
Example Sentences:
(1) The free radical scavengers mannitol, thiourea, benzoate, and 4-methylmercapto-2-oxobutyrate protected either native cells exposed to H2O2 or pretreated hepatocytes exposed to H2O2 and given ferric or ferrous iron.
(2) The pH dependence of this spectral change gave a sigmoidal curve fitted well to a theoretical curve of a cooperative release of two protons with a pK value of 7.5, indicating the existence of the acidic and alkaline forms of the ferrous CO enzyme.
(3) Iron presented as inorganic ferric or ferrous salts may also be absorbed, though the more soluble ferrous salts are adsorbed much more rapidly.
(4) The oxygen-free radical scavengers thiourea, mannitol and catalase prevented toxicity mediated by ferrous ammoniumsulphate but not by ferrous ascorbate (molar ratio of 1:20).
(5) One was identified as viridomycin A, the ferrous chelate of 4-hydroxy-3-nitrosobenzaldehyde; the second (actinoviridin A) was the corresponding carboxylic acid chelate and the third (viridomycin E) was a hybrid chelate containing both the aldehyde and acid ligands.
(6) The ferrous iron chelator, bipyridyl, enhanced the production of chemiluminescence catalyzed by FeSO4 and ferritin but had little effect on the K3Fe(CN)6-catalyzed reaction.
(7) Under aerobic conditions, adriamycin-Fe3+ caused a reduction of cytochrome c and ferrous iron formed spontaneously.
(8) EPR studies of intact cells grown photoheterotrophically reveal that in situ cytochrome c' exists largely in the ferrous state.
(9) Ferric ammonium citrate, ferrous sulfate and ferrous gluconate were all found effective in preventing rat anemia when added to their drinking water.
(10) Of several heavy metal ions, such as Fe3+, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+, tested for supplementation of the alkaline growth deficiency, only iron, either added in the ferrous or ferric form, was able to restore cellular growth.
(11) Prolonged continuous cultivation on tetrathionate or thiosulfate did not affect the ability of the organism to grow subsequently in ferrous iron medium.
(12) Fatale haemoptysis occurred as a result of circumferential caustic erosion to the right intermediate bronchus caused by a tablet of ferrous sulphate which remained in contact for 4 days.
(13) Ferrous ions stimulate NAD(P)H oxidation, which is again inhibited by SOD and catalase.
(14) Bio-availability and therapeutic efficacy of two oral ferrous preparations in the form of effervescent tablets (A and A*) were compared.
(15) The reaction of ferrous bleomycin with dioxygen is reexamined to clarify whether radical species derived from molecular oxygen are generated.
(16) The hydroxylase was a monomer with a Mr of 35,000-38,000. alpha-Ketoglutarate, ferrous iron, and molecular oxygen were required for the enzyme activity.
(17) The spontaneous activity of 24 cells was reduced by ferrous ions.
(18) It was classified as a metallo-protease by virtue of its inactivation by metal-ion chelators and reactivation by ferrous ions.
(19) Regulation by iron occurs at the transcriptional level and is mediated by a ferrous iron binding protein designated Fur (ferric uptake regulation).
(20) The anticonvulsant effects of D-alpha-tocopherol (vitamin E) were studied in 4 animal seizure models: the Metrazol threshold model (MET), the maximal electroshock model (MES), the kindling model (well-established seizures), and the ferrous chloride model.
Rust
Definition:
(v. i.) To contract rust; to be or become oxidized.
(n.) The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide or hydroxide; hence, by extension, any metallic film of corrosion.
(n.) A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses (Trichobasis Rubigo-vera), now usually believed to be a form or condition of the corn mildew (Puccinia graminis). As rust, it has solitary reddish spores; as corn mildew, the spores are double and blackish.
(n.) That which resembles rust in appearance or effects.
(n.) A composition used in making a rust joint. See Rust joint, below.
(n.) Foul matter arising from degeneration; as, rust on salted meat.
(n.) Corrosive or injurious accretion or influence.
(v. i.) To be affected with the parasitic fungus called rust; also, to acquire a rusty appearance, as plants.
(v. i.) To degenerate in idleness; to become dull or impaired by inaction.
(v. t.) To cause to contract rust; to corrode with rust; to affect with rust of any kind.
(v. t.) To impair by time and inactivity.
Example Sentences:
(1) The reasoning in Rust v Sullivan allows government to limit freedom of speech in federally funded programs.
(2) Here, abandoned cars don’t just sit and rust, they are swallowed by the jungle.
(3) The cause, they claimed, was emissions from the mine's sulphuric acid factory as well as outflow from mountains of rust-red waste, dumped over 15 years with little concern for the environment.
(4) The bean rust fungus, Uromyces appendiculatus, undergoes thigmotropic differentiation to produce infection structures.
(5) Pain relief is more rapid after electric drill removal; this is probably related to the complete removal of the rust.
(6) And no wonder: unemployment in the Garden State is at a 35-year high of 9.8% – the fourth-worst in the nation – and unlike in the Rust Belt states or other hard-hit regions, in Jersey unemployment is still climbing .
(7) Hill, who cut an unusual touchline figure in green jacket and rust cords, preferred to praise Wednesday for the quality of their set plays rather than blast his defenders for their inability to defend them.
(8) Worse, pests like the berry borer beetle and leaf rust fungus are flourishing as the world warms.
(9) The rusted bike was found in a large white container where its owner, Ikuo Yokoyama, had kept it.
(10) Mr X invested money into buying old equipment from other abandoned coal mines – this was not difficult because abandoned mines with rusting equipment are not in short supply in North Korea today.
(11) This week a beachcomber in British Columbia found a moving crate containing a rusting Harley-Davidson motorcycle registered to Japan's Miyagi prefecture, which absorbed the brunt of the tsunami.
(12) One white lump sits beside the rusted-out remains of a bucket.
(13) In the glow of the thing's own flame they saw edificial flanks, the concrete and rust of them, the iron of the pylon barnacled, shaggy with benthic growth now lank gelatinous bunting.
(14) The Trump vote contained rednecks and inhabitants of the rust belt, just as south Wales and Sunderland turned out for Brexit – but in neither case was that the whole story.
(15) The best actress award Last year Marion Cotillard's turn in Jacques Audiard's Rust & Bone , as a waterpark trainer who loses her legs, was beaten to the best actress award by two troubled nuns in Romanian drama Beyond the Hills.
(16) Basidiomycetes, a complex and common group of fungi, which include mushrooms, rusts, smuts, brackets, and puffballs, have not been well studied.
(17) Naturally, insider accounts suggest electoral calculation : Trump reckoned that the people who put him in the White House, especially blue collar workers in the rust-belt states, have long seen global warming as a con.
(18) We cannot let that happen.” “He says he has foreign policy experience because he ran the Miss Universe pageant in Russia,” she said, adding at another point in the speech: “This isn’t reality television, this is actual reality.” Later, Clinton added: “It is not hard to see how a Trump presidency could lead to a global economic crisis.” The former secretary of state’s speech, staged in front of a wall of US flags, rebutted a foreign policy address Trump made in April in which he promised to save “humanity itself” and “shake the rust off America’s foreign policy”.
(19) Where other politicians might be accused of dog-whistle politics, Trump was broadcasting at a frequency accessible to all, exploiting the nation’s three biggest weaknesses: rust, race and ignorance.
(20) Steel surfaces can be treated with zinc and chromates to prevent the steel from rusting.