What's the difference between dusk and dust?

Dusk


Definition:

  • (a.) Tending to darkness or blackness; moderately dark or black; dusky.
  • (n.) Imperfect obscurity; a middle degree between light and darkness; twilight; as, the dusk of the evening.
  • (n.) A darkish color.
  • (v. t.) To make dusk.
  • (v. i.) To grow dusk.

Example Sentences:

  • (1) Undaunted by the sickening swell of the ocean and wrapped up against the chilly wind, Straneo, of Woods Hole Oceanographic Institution, one of the world's leading oceanographic research centres, continues to take measurements from the waters as the long Arctic dusk falls.
  • (2) Mosquito infection occurred primarily around dusk, the same period during which A. robustus and E. serrulatus were most abundant near the surface of the pond.
  • (3) Activity was stimulated by the change in illumination levels at dawn and dusk.
  • (4) The time-related incidence of these cells entities--the appearance of "dusk" and "bright" cells at 5 min, transitory domination of "bright" cells and the nadir of "dusk" cells at 20 min, sporadic recognition of "bright" cells, lack of "dusk" cells at 45 min and the absence of both cell forms at 180 min--displayed that LP-reactive response promptly appeared and rapidly ceased.
  • (5) For all its posing and grooming, there are no nightclubs - the only flashing lights along this coast are the glowworms strobing across the grass at dusk.
  • (6) Ten minutes' walk away is the wonderful Blaise Hamlet (open dawn until dusk).
  • (7) I shall never forget a cherry tree in Kyoto lit with braziers at dusk.
  • (8) (Nine-year-olds were discovered picking spring onions from dawn till dusk in freezing weather in Worcestershire last year.)
  • (9) Sixty-nine patients reported no symptoms of night blindness and 116 patients claimed no visual field changes; 90 stated that they saw better at dusk.
  • (10) Her most memorable film role to date has been dancing with a python in a state of undress in the vampire movie From Dusk Till Dawn.
  • (11) "Hegel once said wisdom was like an owl, and that it took flight only at dusk.
  • (12) The final picture shows Blackpool Tower at dusk with the seafront illuminations.
  • (13) Mighty Deer Stalker Tough 10km off-road (and very muddy) run in Peeblesshire, Scotland, which starts at dusk.
  • (14) As dusk fell across the city a motorcade of flashing lights and sirens escorted him to the airport, where he thanked his hosts and organisers and the vice-president, Joe Biden, escorted him to the plane.
  • (15) In Fourier's ideal world, one might kick off with gardening in the morning, try some politics, shift on to art around lunchtime, spend the afternoon teaching and wind things up with a go at chemistry at dusk.
  • (16) The city, one of the largest Kurdish bastions of resistance to Isis in northern Syria, was shaken by heavy shelling from the advancing militants at dusk on Friday, sending plumes of smoke skywards and more refugees scrambling across the border into Turkey .
  • (17) A reason for the higher amplitude variation of melatonin in the natural lighting conditions may be the gradual changes of illuminance at dawn and dusk.
  • (18) At dusk on 10 September last year, a few weeks after the juvenile birds had successfully left their nest, the 9.5g tag on Sky’s leg abruptly stopped transmitting.
  • (19) His offices released statements about meetings with cabinet ministers to discuss issues such as the availability of basic food items during Ramadan when Muslims feast on food after a day of dawn-to-dusk fasting.
  • (20) "Fabrice always wanted it to be dusk," said Jenna Thiam, who plays 19-year-old Léna, one of the twin girls at the centre of the drama.

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.