| catharsis | The release of ideas, thoughts, and repressed material from the unconscious, accompanied by an emotional response and relief. (12 Dec 1998) |
|---|---|
| cathartic | <pharmacology> Medications, through their chemical effects, that serve to increase the clearing of intestinal contents. Synonym: laxative. (16 Mar 1998) |
| cathectic | Pertaining to cathexis. (05 Mar 2000) |
| cathemoglobin | An artificial derivative of haemoglobin in which the globin is denatured and the iron oxidised. (05 Mar 2000) |
| cathenamine reductase | <enzyme> Forms ajmalicine alkaloids from cathenamine Registry number: EC 1.3.1.- (26 Jun 1999) |
| cathepsin | <protein> Intracellular proteolytic enzymes of animal tissues, such as cathepsin B, a lysosomal thiol proteinase, C, dipeptidyl peptidase, D, that has pepsin like specificity, G, similar to chymotrypsin, H, that possesses aminopeptidase activity, N, that attacks N terminal peptides of collagen and so on. (18 Nov 1997) |
| cathepsin b | <enzyme> A lysosomal cysteine proteinase which hydrolyzes proteins, with a specificity resembling that of papain. The enzyme is present in a variety of tissues and is important in many physiological and pathological processes. In pathology, cathepsin b has been found to be involved in demyelination, emphysema, rheumatoid arthritis, and neoplastic infiltration. Registry number: EC 3.4.22.1 (12 Dec 1998) |
| cathepsin d | <enzyme> An intracellular proteinase found in a variety of tissue. It has specificity similar to but narrower than that of pepsin a. The enzyme is involved in catabolism of cartilage and connective tissue. Registry number: EC 3.4.23.5 (12 Dec 1998) |
| cathepsins | <enzyme> Dipeptidylpeptide hydrolases. Intracellular acidic proteinases found in aqueous extracts of a variety of animal tissue. Registry number: EC 3.4.- (12 Dec 1998) |
| catheter | <apparatus> A tubular, flexible, surgical instrument for withdrawing fluids from (or introducing fluids into) a cavity of the body, especially one for introduction into the bladder through the urethra for the withdraw of urine. Origin: Gr. Katheter (18 Nov 1997) |
| catheter a demeure | An obsolete term for a catheter that is retained for a considerable period in the urethra. Origin: Fr. Demeurer, to dwell (05 Mar 2000) |
| catheter ablation | Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (dc-shock) or alternating current at radiofrequencies (usually 750 khz). The technique is used most often to ablate the av junction and/or accessory pathways in order to interrupt av conduction and produce av block in the treatment of various tachyarrhythmias. (12 Dec 1998) |
| catheter coude | A catheter with an angular bend near the beak; used to rise over prostatic obstruction. Synonym: catheter coude, prostatic catheter. (05 Mar 2000) |
| catheter fever | An elevation of temperature, usually slight and transitory, following catheterization of the urethra, or the passage of blood clots, gravel, or a calculus. Synonym: catheter fever, urethral fever. (05 Mar 2000) |
| catheter gauge | A metal plate with holes of graduated diameter used to determine the size of a catheter. (05 Mar 2000) |