| Neethling virus | See: lumpyskin disease virus. (05 Mar 2000) |
|---|---|
| nef | An HIV regulatory protein whose functions are not wen understood. HIV without nef appears to be less infectious. (09 Oct 1997) |
| nefasch | <zoology> Any fish of the genus Distichodus. Several large species inhabit the Nile. Source: Websters Dictionary (01 Mar 1998) |
| nefopam | <chemical> 3,4,5,6-tetrahydro-5-methyl-1-phenyl-1h-2,5-benzoxazocine hydrochloride. Non-narcotic analgesic chemically similar to orphenadrine. Its mechanism of action is unclear. It is used for the relief of acute and chronic pain. Pharmacological action: analgesics, non-narcotic. Chemical name: 1H-2,5-Benzoxazocine, 3,4,5,6-tetrahydro-5-methyl-1-phenyl- (12 Dec 1998) |
| nefopam hydrochloride | 3,4,5,6-Tetrahydro-5-methyl-1-phenyl-1H-2,5-benzoxazocine hydrochloride;an analgesic agent. (05 Mar 2000) |
| Neftel's disease | Paresthesia of the head and trunk, and extreme discomfort in any but the recumbent position. (05 Mar 2000) |
| Neftel, William | <person> U.S. Neurologist, 1830-1906. See: Neftel's disease. (05 Mar 2000) |
| negation | <psychology> Refusal to admit the truth or reality of a situation or experience. (12 Dec 1998) |
| negative | Not affirming the presence of the organism or condition in question (a negative diagnosis). (18 Nov 1997) |
| negative accommodation | The decrease of accommodation that occurs when shifting from near vision to distance vision. (05 Mar 2000) |
| negative afterimage | An afterimage in which the lightness relationship is reversed; if chromatic, it appears in complementary colour. (05 Mar 2000) |
| negative anergy | A reduction of the normal or usual immunologic responses because of unrelated intervening disease. Synonym: non-specific anergy. (05 Mar 2000) |
| negative base excess | A measure of metabolic acidosis, usually predicted from the Siggaard-Andersen nomogram; the amount of strong alkali that would have to be added per unit volume of whole blood to titrate it to pH 7.4 while at 37캜 and at a carbon dioxide pressure of 40 mm Hg. (05 Mar 2000) |
| negative binomial distribution | <epidemiology> A distribution which is parameterised by a mean m and an aggregation parameter k which is large when aggregation is small; in fact as k becomes large, the negative binomial distribution approximates the Poisson distribution. (05 Dec 1998) |
| negative control | Regulation of an enzyme activity by an inhibitor of that enzyme or regulation of a protein by repression of transcription. (05 Mar 2000) |