What's the difference between dust and haze?

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.

Haze


Definition:

  • (n.) Light vapor or smoke in the air which more or less impedes vision, with little or no dampness; a lack of transparency in the air; hence, figuratively, obscurity; dimness.
  • (v. i.) To be hazy, or tick with haze.
  • (v. t.) To harass by exacting unnecessary, disagreeable, or difficult work.
  • (v. t.) To harass or annoy by playing abusive or shameful tricks upon; to humiliate by practical jokes; -- used esp. of college students; as, the sophomores hazed a freshman.

Example Sentences:

  • (1) For the colony administration, controlled hazing is a convenient method for forcing prisoners into total submission to their systemic abuse of human rights.
  • (2) It doesn't always go to plan – a Skype interview was conducted with the bottom half of Angel Haze's face – but y'know, that's live TV and technology for you.
  • (3) Every day, about 500 trucks cross the border, kicking up a beige haze of dust.
  • (4) On the frayed, far south-western outskirts of Bogotá, the largest, poorest and most violent barrio in the Colombian capital stretches into the haze up the mountainside as far as the eye can see.
  • (5) Haze's new album (a follow-up to 2012's reputation-establishing Reservation ) is titled Dirty Gold .
  • (6) A 16-year-old caucasian female with Type VI Ehlers-Danlos syndrome had five unusual corneal findings, four of which have not been reported in association with Ehlers-Danlos syndrome: micro-cornea (previously reported), cornea plana, keratoconus posticus, stromal haze at the level of Bowman's layer and a peripheral ring opacity suggestive of anterior embryotoxon.
  • (7) Manager Mike Scioscia may have one-time slugger Josh Hamilton back in time for the postseason, should he heal from rib inflammation ( if they even need him ); same goes for starting pitcher Matt Shoemaker, who has carried the team down the stretch and is recovering from a mild left rib-cage strain , not to mention his rookie hazing role as a Saudi oil tycoon.
  • (8) Slit-lamp biomicroscopy disclosed localized thinning with stromal haze underlying the endothelium in the central cornea.
  • (9) The concentration of radon-222 in air was measured during a flight from Miami to Barbados to Dakar and return; concentrations ranged from 1 to 55 picocuries per standard cubic meter of air and were highest in areas of dense haze, which were present along most of the flight path across the Atlantic Ocean.
  • (10) There's a sense of generations passing in a haze of crisp formalities, with decades of unexpressed emotions left to accumulate, like dust on a snoozing duchess.
  • (11) A dense subepithelial haze was observed in the 5 eyes.
  • (12) The experimental results were consistent with observations on natural infections and indicate that the direct life cycle of H. haze may involve invertebrates as transport hosts.
  • (13) A fter a week in Kolkata , blessed with mellow sunsets created by the yellowy haze that hung over the city, I flew back to Britain via Delhi on Friday.
  • (14) Haze was progressively reduced over 1 month, but it could be still discerned biomicroscopically.
  • (15) It was shown experimentally that H. haze develops to the second stage in the egg and does not hatch spontaneously.
  • (16) He was joined by other Singaporeans who voted in a thick haze, the result of forest fires in nearby Indonesia.
  • (17) The results indicate that following ablation with an ultraviolet laser in both humans and primates, the ablated tissue shows a normal healing reaction resulting in a mild to moderate stromal interface haze.
  • (18) In most patients the haze persisted for two years after gel treatment was discontinued; the haze disappeared in two patients.
  • (19) In April 1997 the haze of uncertainty about Labour had long been dispelled.
  • (20) Behrooz Mohammadi, a 35-year-old computer engineer, told the Guardian that the haze in Tehran was so bad this week that even the Milad Tower, the sixth tallest in the world, was not visible from close by.