What's the difference between dust and spray?

Dust


Definition:

  • (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.

Spray


Definition:

  • (n.) A small shoot or branch; a twig.
  • (n.) A collective body of small branches; as, the tree has a beautiful spray.
  • (n.) A side channel or branch of the runner of a flask, made to distribute the metal in all parts of the mold.
  • (n.) A group of castings made in the same mold and connected by sprues formed in the runner and its branches.
  • (v. t.) Water flying in small drops or particles, as by the force of wind, or the dashing of waves, or from a waterfall, and the like.
  • (v. t.) A jet of fine medicated vapor, used either as an application to a diseased part or to charge the air of a room with a disinfectant or a deodorizer.
  • (v. t.) An instrument for applying such a spray; an atomizer.
  • (v. t.) To let fall in the form of spray.
  • (v. t.) To throw spray upon; to treat with a liquid in the form of spray; as, to spray a wound, or a surgical instrument, with carbolic acid.

Example Sentences:

  • (1) The rise of malaria despite of control measures involves several factors: the house spraying is no more accepted by a large percentage of house holders and the alternative larviciding has only a limited efficacy; the houses of American Indians have no walls to be sprayed; there is a continuous introduction of parasites by migrants.
  • (2) Total body dose of 2,4-D was determined in 10 volunteers following exposure to sprayed turf 1 hour following application and in 10 volunteers exposed 24 hours following application.
  • (3) Careless Herbicidal aerial spray of a field for weed control and defoliation of cotton before machine picking, resulted in the contamination of an adjoining reservoir, killing large volume of fish.
  • (4) Thus, enhancers are required to obtain significant nasal absorption of glucagon and calcitonin and powders and spray solutions did not differ in terms of systemic availability.
  • (5) True Love Impulse Body Spray, Simple Kind to Skin Hydrating Light Moisturiser and VO5 Styling Mousse Extra Body marked double-digit price rises on average across the four chains.
  • (6) BP sprayed almost 2m gallons of Corexit on the slick and at the leak site on the seabed.
  • (7) An infection rate of 0.46% was comparable to the incidence previously observed for conventional methods using an iodine spray as a skin preparation.
  • (8) The effect of spraying plants with rain-water was to enhance slightly the total content of all trace metals analysed.
  • (9) In pest control operations, organophosphorus compounds (OP) have been sprayed as insecticides, blood cholinesterase (ChE) activities and urinary alkylphosphate levels were measured for both OP-sprayers (n = 102) and non-sprayers (n = 35) in pest control companies, and the relationship between the analytical results and spraying conditions was investigated.
  • (10) Liquid nitrogen spray followed by light electrodesiccation treatment is helpful in the management of flat warts, small skin tags, seborrheic keratoses, and cherry angiomas.
  • (11) In global evaluations some 60% of patients had good to excellent results with the nasal spray and some 75% with the eye drops.
  • (12) Enrichment cultures were established with the aromatic fraction of a crude oil and screened for aromatic-degrading pseudomonads, using a sprayed plate technique.
  • (13) Heart rate increased significantly by 2.0 min in the tablet group but did not change in the spray group.
  • (14) 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.
  • (15) A rowdy fringe took to raiding liquor stores, spraying graffiti and flaunting marijuana.
  • (16) Facebook Twitter Pinterest An activist sprays T-shirts during a training protest organised by NoG20 Rhein-Main.
  • (17) We may be able to control as die back with fungicides but we would need to spray every few weeks over the whole country.
  • (18) The hydrolysate obtained was then subjected to two different dehydration techniques: drum drying at 121 degrees C and 18 seconds retention, and spray drying at 101 degrees C and 40 psi pressure.
  • (19) Large-scale residual spraying was not totally effective and was very costly, and mass chemoprophylaxis was not feasible.
  • (20) 46 boys were sent for operation and have been treated primary with LH-RH nasal spray.