| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
|---|---|
| CRD | carbohydrate-recognition domain; chronic renal disease; chronic respiratory disease; child restraint... |
| CRI | Cardiac Risk Index; catheter-related infection; chronic renal insufficiency; chronic respiratory ins... |
| CSF-WR | cerebrospinal fluid-Wassermann reaction |
| DER | disulfiram-ethanol reaction; dual energy radiography |
| Straus reaction | A diagnostic test for glanders. Male guinea pigs are inoculated intraperitoneally with suspected material; if the glanders organism is present, it will usually set up a necrotizing inflammation in the scrotal sac within a few days and the specific organism can be confirmed bacteriologically. (05 Mar 2000) |
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| neurotonic reaction | Muscular contraction continuing well after cessation of stimulation. (05 Mar 2000) |
| neutral reaction | PH of 7.00; H+ and OH- ion concentrations equal at 10-7 m at 22캜. Compare: dissociation constant of water. (05 Mar 2000) |
| stress reaction | An acute emotional reaction related to extreme environmental stress. Synonym: acute situational reaction. (05 Mar 2000) |
| ninhydrin reaction | <technique> A technique for detecting amino acids and proteins by heating a material with ninhydrin, if amino molecules are present, there is a colour reaction. (09 Oct 1997) |
| nitritoid reaction | A severe reaction resembling that following the administration of nitrites, sometimes following intravenous administration of arsphenamine or other drugs; consists of flushing of the face, oedema of the tongue and lips, vomiting, profuse sweating, a fall in blood pressure, and sometimes death. (05 Mar 2000) |
| nuclear reaction | The interaction of two atomic nuclei or of one such with a subatomic particle, or of the subatomic particles within an atomic nucleus, resulting in a change in the nature of the nuclei concerned or in the energy content of the nuclei or both, usually manifested by transmutation (accompanied by emission of alpha-, beta-, or gamma-rays) or by fission or fusion of the nuclei. (05 Mar 2000) |
| Dale reaction | The contraction of an excised intestinal loop (Schultz) or of an excised strip of virginal uterus (Dale) from a sensitised animal (guinea pig) which occurs when the tissue is exposed to the specific antigen. (05 Mar 2000) |
| dark reaction | <biochemistry, plant biology> The reactions in photosynthesis that occur after NADPH and ATP production and that take place in the stroma of the chloroplast. By means of the reaction, carbon dioxide is incorporated into carbohydrate. (18 Nov 1997) |
| decidual reaction | The cellular and vascular changes occurring in the endometrium at the time of implantation. (05 Mar 2000) |
| dehydration-condensation reaction | The joining of two molecules to each other with the release of a water molecule in the process. Compare: hydrolysis. (09 Oct 1997) |
| symptomatic reaction | An allergic response similar to the original one, but occurring after the use of a test or therapeutic dose of an allergen or atopen. (05 Mar 2000) |
| depot reaction | Reddening of the skin at the point where the needle entered, in the subcutaneous tuberculin test. (05 Mar 2000) |
| depressive reaction | 1. A lowering or decrease of functional activity. 2. <psychiatry> A mental state of depressed mood characterised by feelings of sadness, despair and discouragement. Depression ranges from normal feelings of the blues through dysthymia to major depression. It in many ways resembles the grief and mourning that follow bereavement, there are often feelings of low self esteem, guilt and self reproach, withdrawal from interpersonal contact and somatic symptoms such as eating and sleep disturbances. Origin: L. Depremere = to press down (18 Nov 1997) |
| dermotuberculin reaction | A cutaneous tuberculin test. (05 Mar 2000) |