| divinyl ether synthase | <enzyme> Catalyses conversion of hydroperoxides to divinyl ethers; isolated from garlic bulbs allium sativum; preferentially acts sterospecifically on the (s) enantomer of 13-hpod ((9z,11e,13s)-13-hydroperoxy-9,11-octadecadienoic acid Registry number: EC 1.- (26 Jun 1999) |
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| ether | 1. <physics> 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. 2. Supposed matter above the air; the air itself. 3. <chemistry> A light, volatile, mobile, inflammable liquid, (C2H5)2O, of a characteristic aromatic odour, 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. Any similar oxide of hydrocarbon radicals; as, amyl ether; valeric ether. <chemistry> Complex ether, Mixed ether, a condensing engine like a steam engine, but operated by the vapor of ether instead of by steam. Origin: Written also aether. Source: Websters Dictionary (01 Mar 1998) |
| ether convulsion | A convulsion occasionally associated with divinyl and diethyl ether anaesthesia. (05 Mar 2000) |
| ether, ethyl | <chemical> 1,1'-oxybisethane. A mobile, very volatile, highly flammable liquid used as an inhalation anaesthetic and as a solvent for waxes, fats, oils, perfumes, alkaloids, and gums. It is mildly irritating to skin and mucous membranes. Pharmacological action: anaesthetics, inhalation, solvents. Chemical name: Ethane, 1,1'-oxybis- (12 Dec 1998) |
| ether test | An obsolete test to determine arm-to-lung circulation time; diluted ether is injected intravenously and the end point taken when the subject coughs or tastes ether or the observer smells ether on the subject's breath. (05 Mar 2000) |
| ethyl ether | CH3CH2OCH2CH3;a flammable, volatile organic solvent used in extraction procedures; formerly widely used as an inhalation anaesthetic; shortcomings include: irritating vapor, slow onset and prolonged recovery phase, explosion hazard. Synonym: ethyl ether, ethyl oxide, sulfuric ether. (05 Mar 2000) |
| anaesthetic | 1. <neurology> Pertaining to, characterised by or producing anaesthesia. 2. <pharmacology> A drug or agent that is used to produce partial loss of feeling or sensation of pain. (14 May 1997) |
| anaesthetic circuit | Equipment used during inhalation anaesthesia to regulate concentrations of inhaled gases; includes a reservoir bag and usually directional valves, breathing tubes, and a carbon dioxide absorber. (05 Mar 2000) |
| anaesthetic depth | The degree of central nervous system depression produced by a general anaesthetic agent; a function of potency of the anaesthetic and the concentration in which it is administered. (05 Mar 2000) |
| anaesthetic, epidural | An anaesthetic injected into the epidural space surrounding the fluid-filled sac (the dura) around the spine which partially numbs the abdomen and legs. (12 Dec 1998) |
| anaesthetic gas | A gas or a liquid with sufficient vapor pressure to produce general anaesthesia when breathed. (05 Mar 2000) |
| anaesthetic index | Ratio of the number of units of anaesthetic required for anaesthesia to the number of units of anaesthetic required to produce respiratory or cardiovascular failure. (05 Mar 2000) |
| anaesthetic leprosy | A form of leprosy chiefly affecting the nerves, marked by hyperesthesia succeeded by anaesthesia, and by paralysis, ulceration, and various trophic disturbances, terminating in gangrene and mutilation. Synonym: Danielssen's disease, Danielssen-Boeck disease, dry leprosy, trophoneurotic leprosy. (05 Mar 2000) |
| anaesthetic shock | Shock produced by the administration of anaesthetic drug(s), usually in relative overdosage. (05 Mar 2000) |
| anaesthetic vapor | The gaseous phase of a liquid anaesthetic with sufficient partial pressure at room temperature to produce general anaesthesia when inhaled. (05 Mar 2000) |