What's the difference between air and ether?

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.

Ether


Definition:

  • (n.) A medium of great elasticity and extreme tenuity, supposed to pervade all space, the interior of solid bodies not excepted, and to be the medium of transmission of light and heat; hence often called luminiferous ether.
  • (n.) Supposed matter above the air; the air itself.
  • (n.) A light, volatile, mobile, inflammable liquid, (C2H5)2O, of a characteristic aromatic odor, obtained by the distillation of alcohol with sulphuric acid, and hence called also sulphuric ether. It is powerful solvent of fats, resins, and pyroxylin, but finds its chief use as an anaesthetic. Called also ethyl oxide.
  • (n.) Any similar oxide of hydrocarbon radicals; as, amyl ether; valeric ether.

Example Sentences:

  • (1) It was shown in experiments on four dogs by the conditioned method that the period of recovery of conditioned activity after one hour ether anaesthesia tested 7 to 7.5 days.
  • (2) After 3 and 6 months, blood collected by cardiocentesis using ether anesthesia and then sacrificed to remove CNS and internal organs.
  • (3) Glycosyl ceramide concentration was determined by gas-liquid chromatography of the trimethylsilyl ethers of the methyl glycosides.
  • (4) Ether extracts were analyzed by gas chromatography-mass spectrometry (GC-MS) and various chlorinated and non-chlorinated compounds were detected, e.g.
  • (5) 1 Rats were convulsed once daily for 7 days by exposure to the inhalant convulsant agent, flurothyl (Indoklon, bis (2,2,2-trifluouroethyl)ether).
  • (6) No impurities in the technical grade ether influenced the responses.
  • (7) Depletion of extracellular Ca2+ by EGTA [ethylene glycol-bis(beta-aminoethyl ether)-N,N,N'N'-tetraacetic acid] attenuated both [Ca2+]i increase and superoxide production induced by particles.
  • (8) It was presumed that thymohydroquinone is excreted as ethereal sulfuric acid conjugate in man.
  • (9) The authors have carried out an experimental study of an insufficiently explored problem of the diffusion capacity of the ethers of cholesterol through the skin and the possibility of their intra-articular transport with cholesterol ether of the oleic acid marked 1,2(3)H taken as an example.
  • (10) Chelation of extracellular calcium with ethyleneglycol-bis(beta-aminoethyl ether)N,N,N',N' tetraacetic acid (EGTA) did not abolish the increase in calcium.
  • (11) The UE and KE fractions were then separated by silicic acid column chromatography with a stepwise elution method using ether-hexane.
  • (12) The enzyme appears to be highly specific since D-dopachrome, alpha-methyldopachrome, dopaminochrome, adrenochrome methyl ether and deoxyadrenochrome are not substrates.
  • (13) After introduction of surgical anesthesia with general agents such as ether and chloroform, a large number of deaths due to anesthetic toxicity were reported.
  • (14) Data of ether-extracted total fat content versus data of fat marbling planimetry correlated well with r = 0.9.
  • (15) When the enzyme is inactivated with 16alpha-[2-3H]bromoacetoxyestradiol 3-methyl ether, amino acid analysis of acid hydrolysates reveals 3-carboxymethylhistidine and 1,3-dicarboxymethylhistidine.
  • (16) In addition these methods of estrogen treatment potentiated the ether-induced increase in plasma prolactin in the morning (9.00-11.00) beginning on week 2 and continuing for 3-8 weeks.
  • (17) Studies of structure-transacylation relationships for a series of acylhydroxamic acids of chlorinated biphenyl ethers and their related compounds by rat liver N-arylacylhydroxamic acid-dependent N-acyltransferase (AHNAT) are described.
  • (18) The biologically inactive phorbol ester 12-O-tetradecanoyl phorbol-13-acetate methyl ether (10 nM) had no effect on 45Ca2+ uptake.
  • (19) Steroids were extracted with ethyl ether, and cortisol was purified by gel column chromatography prior to assay.
  • (20) The method comprised adsorption on Extrelut column from alkaline plasma, elution with diethyl ether-methylene chloride, evaporation in the presence of 0.01 M hydrochloric acid and injection of the acid solution onto a mu Bondapak C18 column, using acetonitrile-0.025 M potassium dihydrogenphosphate as mobile phase and ultraviolet detection at 210 nm.

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