| SPIA | solid-phase immunoabsorption; solid-phase immunoassay |
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| ACTG | AIDS Clinical Trial Group |
| CTC | chlortetracycline; Clinical Trial Certificate; computed tomographic colography; computer-aided tomog... |
| DPCRT | double-blind placebo-controlled randomized clinical trial |
| NCIC | CTG National Cancer Institute of Canada Clinical Trial Group |
| randomised trial | <statistics> A clinical trial in which patients have been randomly assigned to receive either the study drug or alternative treatment, in which neither the patient nor the physician conducting the study know which treatment is being given the patient, and in which the alternative to the study drug is a placebo, the study is conducted at several centres. (09 Oct 1997) |
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| controlled trial | A clinical study in which one group of participants receives an experimental drug while another group receives either a placebo or an approved standard therapy. When participants do not know which group they are in, the trial is blinded. See: Double-Blind. (09 Oct 1997) |
| open-label trial | A study in which both researchers and participants know what drug a person is taking and at what dose. (09 Oct 1997) |
| trial | 1. The act of trying or testing in any manner. Specifically: Any effort or exertion of strength for the purpose of ascertaining what can be done or effected. "[I] defy thee to the trial of mortal fight." (Milton) The act of testing by experience; proof; test. "Repeated trials of the issues and events of actions." (Bp. Wilkins) Examination by a test; experiment, as in chemistry, metallurgy, etc. 2. The state of being tried or tempted; exposure to suffering that tests strength, patience, faith, or the like; affliction or temptation that exercises and proves the graces or virtues of men. "Others had trial of cruel mockings and scourgings." (Heb. Xi. 36) 3. That which tries or afflicts; that which harasses; that which tries the character or principles; that which tempts to evil; as, his child's conduct was a sore trial. "Every station is exposed to some trials." (Rogers) 4. The formal examination of the matter in issue in a cause before a competent tribunal; the mode of determining a question of fact in a court of law; the examination, in legal form, of the facts in issue in a cause pending before a competent tribunal, for the purpose of determining such issue. Synonym: Test, attempt, endeavor, effort, experiment, proof, essay. See Test, and Attempt. Origin: From Try. Source: Websters Dictionary (01 Mar 1998) |
| trial and error | The apparently random, haphazard, hit-or-miss exploratory activity which often precedes the acquisition of new information or adjustments; it may be overt, as in a rat running in a maze, or covert (vicarious), as when one thinks of various ways of coping with a situation. (05 Mar 2000) |
| trial base | <cell biology> A hypothetical cell adhesion molecule possibly involved in sponge cell adhesion, existence unproven. (18 Nov 1997) |
| trial case | In refraction, a box containing lenses for testing. (05 Mar 2000) |
| trial denture | A setup of artificial teeth so fabricated that it may be placed in the patient's mouth to verify esthetics, for the making of records, or for any other operation deemed necessary before final completion of the denture. Synonym: wax model denture. (05 Mar 2000) |
| trial frame | A type of spectacle frame with variable adjustments, for holding trial lenses during refraction. (05 Mar 2000) |
| trial lenses | A series of cylindrical and spherical lens's used in testing vision. (05 Mar 2000) |
| trial of labour | Allowing a woman to be in labour long enough to determine if vaginal birth may be anticipated. (12 Dec 1998) |
| Addison's clinical planes | A series of plane's used as landmarks in thoracoabdominal topography; the trunk is divided vertically by a median plane from the upper border of the manubrium of the sternum to the pubic symphysis, by a lateral plane drawn vertically on either side through a point half way between the anterior superior iliac spine and the median plane at the interspinal plane, and by an interspinal plane passing vertically through the anterior superior iliac spine on either side; transversely the trunk is divided by a transthoracic plane passing across the thorax 3.2 cm above the lower border of the body of the sternum, by a transpyloric plane midway between the jugular notch of the sternum and the pubic symphysis, corresponding to the disc between the first and second lumbar vertebrae, and by an intertubercular plane passing through the iliac tubercles and cutting usually the fifth lumbar vertebra; the plane's formed on these lines, and also on transverse plane's cutting the upper edge of the manubrium and the upper edge of the pubic symphysis, constitute the clinical plane's of Addison. (05 Mar 2000) |
| pathology, clinical | A subspecialty of pathology which deals with the laboratory analysis of specimens of human blood and other fluids. (12 Dec 1998) |
| chemistry, clinical | The specialty of analytical chemistry applied to assays of physiologically important substances found in blood, urine, tissues, and other biological fluids for the purpose of aiding the physician in making a diagnosis or following therapy. (12 Dec 1998) |
| pharmacology, clinical | The branch of pharmacology that deals directly with the effectiveness and safety of drugs in humans. (12 Dec 1998) |