| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |
|---|---|
| PAA | partial agonist activity; phenylacetic acid; phosphonoacetic acid; physical abilities analysis; plas... |
| ASA | acetylsalicylic acid; active systemic anaphylaxis; Adams-Stokes attack; American Society of Anesthes... |
| CA | anterior commissure [Lat. commissura anterior]; calcium antagonist; California [rabbit]; cancer; Can... |
| DHA | dehydroacetic acid; dehydroascorbic acid; dehydroepiandrosterone; dihydroacetic acid; dihydroxyaceto... |
| Esbach's reagent | Picric acid, citric acid, and water (in the proportions 1, 2, and 97) used for the detection of albumin in the urine. (05 Mar 2000) |
|---|---|
| Exton reagent | 50 g sulfosalicylic acid and 200g Na2SO4-10H2O in a liter of water, used as a test for albumin. (05 Mar 2000) |
| Uffelmann's reagent | To a 2% solution of phenol in water is added to aqueous ferric chloride until the solution becomes violet in colour; this turns lemon yellow in the presence of lactic acid, assumes an opaline tint in butyric acid, and is decolorised by hydrochloric acid. (05 Mar 2000) |
| Fehling's reagent | An alkaline copper tartrate solution formerly used for detection of reducing sugars. Synonym: Fehling's reagent. (05 Mar 2000) |
| Feulgen reagent | <chemical> A staining substance which specifically stains DNA. Robert Feulgen, in 1914, used this stain to find out that DNA is the hereditary material in cells. (09 Oct 1997) |
| Folin's reagent | The reaction of amino acids in alkaline solution with 1,2-naphthoquinone-4-sulfonate (Folin's reagent) to yield a red colour; useful for quantitative assay. Synonym: Folin's reagent. (05 Mar 2000) |
| Fouchet's reagent | A 25% solution of trichloroacetic acid, containing 0.9% ferric chloride; a drop of the reagent added at the surface line of barium chloride-impregnated filter paper which has been dipped in urine for 10 sec will give a green colour if bilirubin is present. See: Fouchet's stain. (05 Mar 2000) |
| Froehde's reagent | Sodium molybdate 1, in strong sulfuric acid 1000; gives various colour reactions with alkaloids. (05 Mar 2000) |
| Frohn's reagent | Bismuth subnitrate (1.5) and water (20.0) heated to boiling, to which hydrochloric acid (10.0) and potassium iodide (7.0) are added; used to test for alkaloids and for sugar. (05 Mar 2000) |
| Lloyd's reagent | Precipitated aluminum silicate, used in the determination of alkaloids. (05 Mar 2000) |
| Rambourg's chromic acid-phosphotungstic acid stain | <technique> A stain for glycoproteins, used with an electron microscope, with which ultrathin tissue sections reveal complex carbohydrates in the same locations as shown by Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |
| a1-acid glycoprotein | <biology> Plasma protein of mammals and birds, 38% carbohydrate. In humans a single chain glycoprotein of 39 kD. Increased levels are associated with inflammation, pregnancy and various diseases. (18 Nov 1997) |
| abscisic acid | <biochemistry> A lipid hormone that inhibits cell growth in plants, it is associated with fruit drop, leaf death and seed dormancy. It is synthesised in the plastids from carotenoids. This hormone helps plants deal with water loss, and its effects can be reversed with gibberellins. (06 May 1997) |
| abscisic acid 8'-hydroxylase | <enzyme> Catalyses conversion of abscisic acid to 8'-hydroxyabscisic acid, which rearranges to phaseic acid Registry number: EC 1.14.99.- Synonym: aba 8'-hydroxylase (26 Jun 1999) |
| acetic acid | <chemical> The acid most commonly associated with vinegar, it is the most commercially important organic acid and is used to manufacture a wide range of chemical products, such as plastics and Acetobacter but, except for making vinegar, is usually made through synthetic processes. Derivatives of acetic acid which may be formed by substitution reactions. Mono- and di-substituted, as well as, halogenated compounds have been synthesised. Experimentally, alpha- and n2- substituted acetic acids have been examined for their anti-inflammatory activity and effect on the central nervous system respectively. Additionally, limited exposure data has been collected on dibromo and dichloroacetic acids to determine whether they pose health effects. Synonym: ethanoic acid. (26 Jun 1999) |