| ammonia detoxication | The detoxication of ammonia and ammonium ion by the formation of ammonium salts, specific nitrogen-excretion products, or l-glutamine. (05 Mar 2000) |
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| metabolic detoxication, drug | Reduction of pharmacologic activity or toxicity of a drug or other foreign substance by a living system, usually by enzymatic action. It includes those metabolic transformations that make the substance more soluble for faster renal excretion. (12 Dec 1998) |
| detoxication | 1. Recovery from the toxic effects of a drug. 2. Removal of the toxic properties from a poison. 3. Metabolic conversion of pharmacologically active principles to pharmacologically less active principles. Synonym: detoxification. (05 Mar 2000) |
| competitive antagonist | An antimetabolite. (05 Mar 2000) |
| competitive behaviour | The direct struggle between individuals for environmental necessities or for a common goal. (12 Dec 1998) |
| competitive bidding | Pricing statements presented by more than one party for the purpose of securing a contract. (12 Dec 1998) |
| competitive binding assay | General term for an assay in which a binder competes for labelled versus unlabelled ligand; following separation of free and bound ligand, the ligand (the analyte assayed) is quantitated by relating bound and unbound ratios to known standards. See: enzyme-linked immunosorbent assay, radioreceptor assay, immunoassay, enzyme-multiplied immunoassay technique, radioimmunoassay. Synonym: displacement analysis, saturation analysis. (05 Mar 2000) |
| competitive inhibition | <chemistry> Inhibitor that occupies the active site of an enzyme or the binding site of a receptor and prevents the normal substrate or ligand from binding. at sufficiently high concentration of the normal ligand inhibition is lost: the Km is altered by the competitive inhibitor, but the Vmax remains the same. (05 Jan 1998) |
| competitive medical plans | Alternative health care delivery mechanisms, such as preferred provider organizations or other health insurance services or prepaid plans (other than health maintenance organizations), that meet medicare qualifications for a risk-sharing contract. (12 Dec 1998) |