What's the difference between air and backwash?

Air


Definition:

  • (n.) The fluid which we breathe, and which surrounds the earth; the atmosphere. It is invisible, inodorous, insipid, transparent, compressible, elastic, and ponderable.
  • (n.) Symbolically: Something unsubstantial, light, or volatile.
  • (n.) A particular state of the atmosphere, as respects heat, cold, moisture, etc., or as affecting the sensations; as, a smoky air, a damp air, the morning air, etc.
  • (n.) Any aeriform body; a gas; as, oxygen was formerly called vital air.
  • (n.) Air in motion; a light breeze; a gentle wind.
  • (n.) Odoriferous or contaminated air.
  • (n.) That which surrounds and influences.
  • (n.) Utterance abroad; publicity; vent.
  • (n.) Intelligence; information.
  • (n.) A musical idea, or motive, rhythmically developed in consecutive single tones, so as to form a symmetrical and balanced whole, which may be sung by a single voice to the stanzas of a hymn or song, or even to plain prose, or played upon an instrument; a melody; a tune; an aria.
  • (n.) In harmonized chorals, psalmody, part songs, etc., the part which bears the tune or melody -- in modern harmony usually the upper part -- is sometimes called the air.
  • (n.) The peculiar look, appearance, and bearing of a person; mien; demeanor; as, the air of a youth; a heavy air; a lofty air.
  • (n.) Peculiar appearance; apparent character; semblance; manner; style.
  • (n.) An artificial or affected manner; show of pride or vanity; haughtiness; as, it is said of a person, he puts on airs.
  • (n.) The representation or reproduction of the effect of the atmospheric medium through which every object in nature is viewed.
  • (n.) Carriage; attitude; action; movement; as, the head of that portrait has a good air.
  • (n.) The artificial motion or carriage of a horse.
  • (n.) To expose to the air for the purpose of cooling, refreshing, or purifying; to ventilate; as, to air a room.
  • (n.) To expose for the sake of public notice; to display ostentatiously; as, to air one's opinion.
  • (n.) To expose to heat, for the purpose of expelling dampness, or of warming; as, to air linen; to air liquors.

Example Sentences:

  • (1) We attribute this in part to early diagnosis by computed tomography (CT), but a contributory factor may be earlier referrals from country centres to a paediatric trauma centre and rapid transfer, by air or road, by medical retrieval teams.
  • (2) In a debate in the House of Commons, I will ask Britain, the US and other allies to convert generalised offers of help into more practical support with greater air cover, military surveillance and helicopter back-up, to hunt down the terrorists who abducted the girls.
  • (3) Sperm were examined at 4.5 h, 8 to 9 h, and 24 to 25 h of incubation (37 degrees C, 5% CO2, and 95% air).
  • (4) In the present study, respirometric quotients, the ratio of oral air volume expended to total volume expended, were obtained using separate but simultaneous productions of oral and nasal airflow.
  • (5) The manufacturers, British Aerospace describe it as a "single-seat, radar equipped, lightweight, multi-role combat aircraft, providing comprehensive air defence and ground attack capability".
  • (6) By increasing luminal air pressure from 10 to 20 cm H2O a significant reduction in GBF was observed.
  • (7) The dangers caused by PM10s was highlighted in the Rogers review of local authority regulatory services, published in 2007, which said poor air quality contributed to between 12,000 and 24,000 premature deaths each year.
  • (8) Do [MPs] remember the madness of those advertisements that talked of the cool fresh mountain air of menthol cigarettes?
  • (9) Enough with Clintonism and its prideful air of professional-class virtue.
  • (10) These data suggest that submaximal exercise and cold air exposure enhance nonspecific bronchial reactivity in asthmatic but not in normal subjects.
  • (11) The phenylalanine model allows the rapid assessment of whole body and muscle protein turnover from plasma samples alone, obviating the need for measurement of expired air CO2 production or enrichment.
  • (12) Age-specific MRs for the over-75-year age group were also not related to the winter air temperatures in the eight cities.
  • (13) They urged the Department of Environment, Food and Rural Affairs to make air quality a higher priority and release the latest figures on premature deaths.
  • (14) Of great influence on the results of measurements are preparation and registration (warm-up-time, amplification, closeness of pressure-system, unhurt catheters), factors relating to equipment and methods (air-bubbles in pressure-system, damping by filters, continuous infusion of the micro-catheter, level of zero-pressure), factors which occur during intravital measurement (pressure-drop along the arteria pulmonalis, influence of normal breathing, great intrapleural pressure changes, pressure damping in the catheter by thrombosis and external disturbances) and last not least positive and negative acceleration forces, which influence the diastolic and systolic pulmonary artery pressure.
  • (15) Both eosin derivatives, however, inactivate acetylcholinesterase upon illumination of air-equilibrated samples of hemoglobin-free labeled ghosts.
  • (16) The biggest single source of air pollution is coal-fired power stations and China, with its large population and heavy reliance on coal power, provides $2.3tn of the annual subsidies.
  • (17) Rats were injected subcutaneously with 10 ml of air into the dorsal skin to make an air-pouch and with 2 ml of antiserum at an appropriate dilution for passive sensitization, and then 5 ml of air was removed.
  • (18) Of the other patients, four panicked with sodium lactate, none with 5% CO2, and one with room air hyperventilation.
  • (19) In presence of oxygen (air) the phototactic reaction values are somewhat lower than in its absence.
  • (20) In general, air from the mediastinum far more often enters the left pleural cavity than the right one.

Backwash


Definition:

  • (v. i.) To clean the oil from (wood) after combing.

Example Sentences:

  • (1) These data indicate that the selectivity of removal of anti-AChR Ab from albumin is higher at 4 degrees C than that at 37 degrees C. The volume treated at 4 degrees C was significantly lower than that treated at 37 degrees C, and it was less than that required for a clinical treatment; however, it was shown that filter backwashing is possible without loss of solute removal selectivity.
  • (2) The study says the inability to forecast the double-dip recession from the fourth quarter of 2011 to the second quarter of 2012 had been due to poor trading performance as the UK felt the backwash from the eurozone crisis.
  • (3) In a patient with long-staning ulcerative colitis and "backwash" ileitis, multiple carcinomas developed in the colon and ileum.
  • (4) In cases of inadequate filter backwashing, such aggregates may penetrate into clean water.
  • (5) The government in Nicosia admitted that it had been caught in the backwash from the crisis in neighbouring Greece as it formally applied to Brussels for assistance.
  • (6) Backwashing with saline, serum, 6% NaCl, dextran solutions, or phosphate buffers of varying molality and pH removed only a fraction of adherent particles.
  • (7) Samples included water collected immediately after conventional treatment, during the backwash cycle, at various points in the distribution system, and 1 week after the break and subsequent repair of a distribution main.
  • (8) Although the frequency of such premalignant and malignant changes in "backwash" ileitis is unknown, their concurrence in this case suggests that ulcerative colitis involving the terminal ileum increases the risk of small bowel carcinoma.
  • (9) France, a long-term sufferer from the austerity backwash, could already be said to have made its own contribution after a year of private-sector contraction.
  • (10) A particular advantage of the solvent system is that only a single partitioning step is needed, without backwashes, and the enzyme product appears in the upper phase, making transfer to a counting vial more reliable.
  • (11) To assess whether the presence of backwash ileitis predisposed to the subsequent development of ileal pouchitis after ileal pouch-anal anastomosis, 131 patients who had the operation were studied.
  • (12) During membrane plasma fractionation therapy there are reported incidences of membrane plugging requiring the corrective actions of either filter replacement or backwashing (BW) in order to continue the treatment.
  • (13) Though the exact pathogenesis is uncertain, several possibilities, particularly with regard to antecedent dysplasia and backwash ileitis, are discussed.
  • (14) Backwashing, by reversing the direction of the permeate, was found necessary to prolong the life of the filter.
  • (15) Trocar resection is superior to Iglesias' backwash resection.
  • (16) Results showed statistically significant decreases of TMP from 300 mm Hg to 70 mm Hg between just before and after both backwashing procedures, and that there were no significant changes in the TMP increase during the cryofiltration procedure between pre- and post-BW.
  • (17) Tim Yeo, the Tory MP who chairs the environmental audit select ­committee, said the shift had come about because of scientific mistakes, and a "backwash" from Copenhagen.
  • (18) Use of standard angioplasty balloon inflation prevents "backwash" of distally infused ethanol and more generalized cell death.
  • (19) Stifling any urge to delight in McKillop's predicament, the chancellor said the government would shortly announce details of a rescue plan for UK banks caught up in the backwash from the collapse of Lehman, little more than three weeks earlier.
  • (20) Recent research has shown that these aims can be achieved by altering the mode of running and backwashing filters of all process combinations including those using ozone and introducing an additional absorption on powdered activated carbon, and the process combination of flocculation-filtration-chlorination.

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