| ethylene oxide | <chemical> Chemical name: Oxirane (12 Dec 1998) |
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| ethylene | <chemical, plant biology> Plant growth substance (phytohormone, plant hormone), involved in promoting growth, epinasty, fruit ripening, senescence and breaking of dormancy. Its action is closely linked with that of auxin. (18 Nov 1997) |
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| ethylene chlorohydrin | <chemical> 2-chloroethanol. Used as a solvent, in the manufacture of insecticide, and for treating sweet potatoes before planting. May cause nausea, vomiting, pains in head and chest, stupefaction. Irritates mucous membranes and causes kidney and liver degeneration. Chemical name: Ethanol, 2-chloro- (12 Dec 1998) |
| ethylene diamine tetra acetate | <chemical> A chemical that is used to remove all traces of magnesium and calcium ions from a solution because it binds tightly to them, in order to control unwanted side reactions with these metals during a laboratory process. Acronym: EDTA (11 Nov 1997) |
| ethylene dibromide | <chemical> 1,2-dibromoethane. An effective soil fumigant, insecticide, and nematocide. In humans, it causes severe burning of skin and irritation of the eyes and respiratory tract. Prolonged inhalation may cause liver necrosis. It is also used in gasoline. Members of this group have caused liver and lung cancers in rodents. According to the fourth annual report on carcinogens (ntp 85-002, 1985), 1,2-dibromoethane may reasonably be anticipated to be a carcinogen. Pharmacological action: carcinogens, insecticide. Chemical name: Ethane, 1,2-dibromo- (12 Dec 1998) |
| ethylene dichlorides | Toxic, chlorinated, saturated hydrocarbons. Include both the 1,1- and 1,2-dichloro isomers. The latter is considerably more toxic. It has a sweet taste, ethereal odour and has been used as a fumigant and intoxicant among sniffers. Has many household and industrial uses. (12 Dec 1998) |
| ethylene glycol | <chemical> A common ingredient in anti-freeze, very toxic to the liver if ingested (27 Sep 1997) |
| ethylene glycols | An ethylene compound with two hydroxy groups (-oh) located on adjacent carbons. They are viscous and colourless liquids. Some are used as anaesthetics or hypnotics. However, the class is best known for their use as a coolant or antifreeze. (12 Dec 1998) |
| ethylene tetrachloride | An anthelmintic against hookworm and other nematodes. Synonym: carbon dichloride, ethylene tetrachloride, tetrachloroethylene. (05 Mar 2000) |
| acid oxide | An acid anhydride; an oxide of an electronegative element or radical; it can combine with water to form an acid. (05 Mar 2000) |
| alpha-pinene oxide lyase | <enzyme> From nocardia sp. Strain p18.3; catalyses the cleavage of both rings of the bicyclic structure with the formation of 2-methyl-5-isopropylhexa-2,5-dienal Registry number: EC 4.1.2.- Synonym: alpha-pinene oxide lyase (decyclizing) (26 Jun 1999) |
| aluminum bismuth oxide | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
| aluminum oxide | <chemical> Aluminum oxide (al2o3). An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories. Chemical name: Aluminum oxide (Al2O3) (12 Dec 1998) |
| antimonous oxide | Sb2O3;used technically in paints and flame-proofing; also used as an expectorant and emetic. Synonym: antimonous oxide, antimony oxide, flowers of antimony. Abbreviation: Sb (05 Mar 2000) |
| antimony oxide | Sb2O3;used technically in paints and flame-proofing; also used as an expectorant and emetic. Synonym: antimonous oxide, antimony oxide, flowers of antimony. Abbreviation: Sb (05 Mar 2000) |
| arsenous oxide | As2O3;dissolves in water to give arsenous acid, H3AsO3; used in the treatment of skin diseases and malaria, and as a tonic; also used externally as a caustic. Synonym: arsenous oxide, white arsenic. (05 Mar 2000) |