J acid
| acid red 91 | The disodium salt of 4',5'-dibromo-2',7'-dinitrofluorescein. Synonym: acid red 91, eosin I bluish. (05 Mar 2000) |
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| acid reflux test | A test to detect gastroesophageal reflux by monitoring oesophageal pH by an electrode in the distal oesophagus either basally or after acid is instilled into the stomach. (05 Mar 2000) |
| acid rigor | Coagulation of muscle protein induced by acids. (05 Mar 2000) |
| acid salt | A salt in which not all of the ionizable hydrogen of the acid is replaced by the electropositive element; e.g., NaHSO4, KH2PO4. Synonym: bisalt, protosalt. (05 Mar 2000) |
| acid seromucoid | <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) |
| acid soluble spore protein | <molecular biology> A DNA binding protein in the spores of some bacteria, thought to stabilise the DNA in an A configuration, so protecting it from cleavage by enzymes or UV light. (18 Nov 1997) |
| acid stain | <technique> A dye in which the anion is the coloured component of the dye molecule, e.g., sodium eosinate (eosin). (05 Mar 2000) |
| acid sulfate | A salt containing HSO4-. Synonym: acid sulfate. (05 Mar 2000) |
| acid tartrate | A salt of tartaric acid which contains an acid group still capable of combining with a base; e.g., bitartrate. (05 Mar 2000) |
| acid tide | A temporary increase in the acidity of the urine occurring during fasting. Synonym: acid wave. (05 Mar 2000) |
| acid wave | A temporary increase in the acidity of the urine occurring during fasting. Synonym: acid wave. (05 Mar 2000) |
| aconitic acid | <chemical> Chemical name: 1-Propene-1,2,3-tricarboxylic acid (12 Dec 1998) |
| activated amino acid | The product formed by the condensation of the acyl radical of an amino acid and adenosine 5'-monophosphate (originally in the form of adenosine 5'-triphosphate, with elimination of a pyrophosphoric group). Formed in the first step of protein biosynthesis. Synonym: activated amino acid. (05 Mar 2000) |
| activated carboxylic acid | Derivative of a carboxyl group that is more susceptible to nucleophilic attack than a free carboxyl group; e.g., acid anhydrides, thioesters. (05 Mar 2000) |
| activated fatty acid | A fatty acyl-coenzyme A thiol ester. (05 Mar 2000) |