| non-ionic contrast media | <radiology> A class of radiographic contrast media which do not ionise in solution, thereby decreasing effective osmolarity and toxicity. (05 Mar 2000) |
|---|---|
| non-linear | Not linear. (05 Dec 1998) |
| non-Newtonian fluid | <chemistry, physics> A fluid in which the viscosity varies depending upon the shear stress. The effect can arise because of alignment of nonspherical molecules as flow is established or because of suspended deformable particles as in blood. It relates to a fluid in which flow and rate of shear are not always proportional to the applied stress and which does not obey Poiseuille's law. See: anomalous viscosity, Fahraeus-Lindqvist effect, Bingham plastic. Compare: newtonian fluid. (21 Jun 2000) |
| non-nucleated | <cell biology> Having no nucleus. (05 Mar 2000) |
| non-PKU hyperphenylalaninaemia | A benign phenotype in which phenylalanine monooxygenase is deficient but is greater than 1% of normal levels. (05 Mar 2000) |
| non-pros | To decline or fail to prosecute; to allow to be dropped (said of a suit); to enter judgment against (a plaintiff who fails to prosecute); as, the plaintiff was non-prossed. Origin: Nonprossed; Non-prossing. Source: Websters Dictionary (01 Mar 1998) |
| non-rapid eye movement | Slow oscillation of the eyes during sleep. (05 Mar 2000) |
| non-ribosomal peptide synthase | <enzyme> Nrp - non-ribosomal peptide/polyketide; locus nrp is mutated in a swarming-defective proteus mirabilis strain; 249 amino acid residues, mw 29.7 kD; amimo acid sequence given in first source Registry number: EC 6.3.2.- Synonym: nrpg protein, nrpg gene product (26 Jun 1999) |
| non-specific | 1. Not due to any single known cause, as to a particular pathogen. 2. Not directed against a particular agent, but rather having a general effect, as non-specific therapy. (18 Nov 1997) |
| non-specific anergy | A reduction of the normal or usual immunologic responses because of unrelated intervening disease. Synonym: non-specific anergy. (05 Mar 2000) |
| non-specific cholinesterase | <enzyme> An enzyme that breaks down acetylcholine tostop its action. (22 May 1997) |
| non-specific protein | A protein substance that elicits a response not mediated by specific antigen-antibody reaction. (05 Mar 2000) |
| non-specific system | <physiology> A physiological term denoting that part of the brainstem reticular formation that plays a central role in the organism's bodily and behavorial alertness. It extends as a diffusely organised neural apparatus through the central region of the brainstem into the subthalamus and the intralaminar nuclei of the thalamus; by its ascending connections it affects the function of the cerebral cortex in the sense of behavioural responsiveness; its descending (reticulospinal) connections transmit its activating influence upon bodily posture and reflex mechanisms (e.g., muscle tonus), in part by way of the gamma motor neurons. See: reticular formation. Synonym: non-specific system. (05 Mar 2000) |
| non-specific therapy | The injection of a foreign protein, typhoid vaccine, etc., to induce fever in the treatment of certain diseases, especially those of a parasyphilitic nature. Synonym: phlogotherapy. (05 Mar 2000) |
| non-specific urethritis | Urethritis not resulting from gonococcal, chlamydial, or other specific infectious agents. Synonym: simple urethritis. (05 Mar 2000) |