(n.) Fine, dry particles of earth or other matter, so comminuted that they may be raised and wafted by the wind; that which is crumbled too minute portions; fine powder; as, clouds of dust; bone dust.
(n.) A single particle of earth or other matter.
(n.) The earth, as the resting place of the dead.
(n.) The earthy remains of bodies once alive; the remains of the human body.
(n.) Figuratively, a worthless thing.
(n.) Figuratively, a low or mean condition.
(n.) Gold dust
(n.) Coined money; cash.
(v. t.) To free from dust; to brush, wipe, or sweep away dust from; as, to dust a table or a floor.
(v. t.) To sprinkle with dust.
(v. t.) To reduce to a fine powder; to levigate.
Example Sentences:
(1) The antigenic composition of an extract of rat dust, as a source of aeroallergens for rat-sensitive individuals, has been investigated and compared to the antigenic composition of rat saliva and urine.
(2) At the end of the dusting period those animals treated with normally charged dust had significantly more chrysotile retained in their lungs than animals exposed to discharged dust.
(3) Differences between mean durations of dust exposure of workers with radiographic signs of lung fibrosis and those without such signs were statistically insignificant.
(4) Where the guanine content was more than or equal to 0.25% in the dry dust, mite numbers were higher than 10 mites per 0.1 g dust in 43 of the 44 samples.
(5) The contents of hexavalent chromium, Cr(VI), in grinding dust were undetectable.
(6) The results of pathohistologic investigations are objectively demonstrated through a chart of morphological traits, thus facilitating the identification of the diagnostical morphological traits caused by different industrial dusts.
(7) A clinical investigation was made between workers exposed to dried sewage sludge dust and age matched controls not exposed.
(8) The median exposure of total dust was well below the Swedish threshold value, and the exposure of mould and bacteria was also low.
(9) Mattress dusts from the beds of 51 asthmatic children with positive skin tests to house dust mite were assayed for Der p I, Fel d I and certain viable fungi.
(10) According to the quantitative analysis between threshold titers of skin test and RAST titers using house dust and HD mites allergens, specific IgE production shall be decreased in the patients over 40 years old.
(11) Both the observance of occupational limit-values for dusts and other harmful materials at the work place, which have effects on the respiration system, and the medical survey of workers with the use of special methods for examination of respiratory system are necessary.
(12) Further, investigation of electrokinetic properties of these dusts by electrophoretic quasielastic light scattering is described.
(13) We have recently demonstrated in vitro a potential biological mechanism which could occur in vivo upon inhaling airborne graon dust, thereby constituting a potential inflammatory insult to the respiratory tracts of grain workers.
(14) After allowance for the fact that regression analyses suggested that the proportion of tremolite in dust was probably 2.5 times higher in Thetford Mines, Quebec, than in Charleston, the results from both matched pair and stratification analyses of tremolite fibre concentrations in lung were almost the same as for chrysotile.
(15) In vitro exposure of macrophages and neutrophils to inorganic dusts can enhance their oxidative metabolism, however the effects of inorganic dust inhalation on lung-inflammatory cell-oxidative metabolism remain unknown.
(16) Fifty asthmatics, candidates for hyposensitization with the house dust mite Dermatophagoides pteronyssinus (Dp), went through a series of allergy tests to evaluate the sensitivity of different organs to Dp.
(17) Specified cytotoxicity and mutagenicity of coal dust extract (mixture of solvent extractions of bituminous coal nitrosated by NaNO2) were investigated because of the association of an excess risk of gastric cancer in coal miners.
(18) History is littered with examples of byelection sensations that soon turned to dust.
(19) Inhalant allergens as mite house dust, animal danders, pollens, molds and food allergens are considered, now, to be the most sensitizing agents.
(20) Water from the reactors that were the source of Sonoda's drink is being used to spray trees to limit the buildup of dust and prevent fires.
Silt
Definition:
(n.) Mud or fine earth deposited from running or standing water.
(v. t.) To choke, fill, or obstruct with silt or mud.
(v. i.) To flow through crevices; to percolate.
Example Sentences:
(1) Corthine said he had told Cameron 3m tonnes of silt needed to be removed from the Parrett to get it flowing properly again.
(2) Adsorption and movement of carbofuran (a systemic nematicide) were studied using two Indian soils (clay loam and silt loam) of alluvial origin.
(3) Residue content of water samples is normally one-tenth to one-hundredth that of silt, but is much higher during periods of heavy runoff.
(4) Dredging creates turbidity in the water that reduces the amount of light reaching the coral, affecting photosynthesis, while silt that settles on the coral interferes with its ability to feed itself.
(5) As the silt cleared, we found ourselves on a flat plain of yellow-tinged mud, inscribed with pits, burrows and tracks by species that eke out their existence on the detritus that settles from above.
(6) Dam reservoirs trap silt, which decreases their storage capacity and reduces power generation.
(7) Treated seeds were also planted in pots containing Nile silt for testing the efficiency of rhizobia as affected by the fungicide and the pelleting treatments.
(8) The larval lamprey is a filter-feeder who dwells in the silt of freshwater streams and the adult is an active predator found in large lakes or the sea.
(9) At Pelican Island, a 2.5 mile strip in the Barataria Bay, crews used 2.5m cubic yards of sand and silt mined from the Gulf of Mexico to build dunes and marshes, and rolled out protective fences around newly planted grasses.
(10) Their dams slow rivers down, reducing scouring and erosion, and improve water quality by holding back silt.
(11) Before the dam the closure was enforced for about 40 days, during which the canals were closed and dried up, and the silt deposited on their beds during the Nile flood dredged out together with the snails and aquatic weeds.
(12) The Davis family benefited when a group of locals shifted 15 tons of sand and silt from their garden.
(13) Equilibrium adsorption coefficient (K) values measured using a batch-slurry technique follows the order clay loam greater than silt loam soil.
(14) Only 2% of what is flowing through the sewers is sewage; the rest is water and accumulated debris – the vast amount of water you flush down the toilet and all the water and silt that seeps into the sewers when it rains.
(15) The soil is so called "Terra Roxa" (red soil) and in its physicochemical composition there is a great amount of iron oxides, silica (silt, agril laceous material), aluminium, manganese, organic compounds.
(16) The use of the selective media with gentamicin for plating out silt substrates containing mainly Micromonospora had practically no effect on the increase in the number of the Micromonospora cultures grown.
(17) The flood cycles passed on the salts that accumulated from evaporation and passed new layers of silt onto the farmlands around the marshes.
(18) Once you have started dredging, "it must be repeated after every extreme flood, as the river silts up again".
(19) "A silt fence ensures that mud down deep doesn't seep through," said Hidehiko Nishiyama, Japan's spokesman on nuclear safety.
(20) It was shown that Micromonospora predominated in moist soils and especially in such substrates as silts where their content with respect to the all actinomycetous isolates amounted to 88.9 per cent.