| na | The chemical symbol for sodium. From natrium, a synonym for sodium. Sodium chloride (ordinary salt) is nacl. (12 Dec 1998) |
|---|---|
| nabilone | (±)-3-(1,1-Dimethylheptyl-6-6ab,7,8,10,10aa-hexahydro-1-hydroxy-6,6-dimethyl-9H-dibenzo[b,d ]pyran-9-one;a synthetic cannabinoid used in the treatment of nausea and vomiting associated with cancer chemotherapy. (05 Mar 2000) |
| nabk | <botany> The edible berries of the Zizyphys Lotus, a tree of Northern Africa, and Southwestern Europe. Alternative forms: nubk] See Lotus, and Sadr. Origin: Ar. Nabiqa,nibqa. Source: Websters Dictionary (01 Mar 1998) |
| Naboth | Martin, German anatomist and physician, 1675-1721. See: nabothian cyst, follicle. (05 Mar 2000) |
| nabothian cyst | <radiology> Chronic cervicitis most likely to be inflammatory stenosis of cervical glands most likely to be retention most likely to be cyst Differential diagnosis: cystic mass of cervix, ectopic pregnancy, adenomyosis (12 Dec 1998) |
| nabothian follicle | <radiology> Chronic cervicitis most likely to be inflammatory stenosis of cervical glands most likely to be retention most likely to be cyst Differential diagnosis: cystic mass of cervix, ectopic pregnancy, adenomyosis (12 Dec 1998) |
| nac | A naturally occurring substance that is metabolised into the amino acid cysteine. Cysteine is one of the three components of the major cellular antioxidant glutathione (see), and people with HIV have decreased levels of this compound. Clinical studies of oral and intravenously administered NAC are evaluating its usefulness in decreasing HIV activity. See: Oxidative Stress. (09 Oct 1997) |
| nacre | <zoology> A pearly substance which lines the interior of many shells, and is most perfect in the mother-of-pearl. Alternative forms: nacker and naker] See Pearl, and Mother-of-pearl. Origin: F, cf. Sp. Nacara, nacar, It. Nacchera, naccaro, LL. Nacara, nacrum; of Oriental origin, cf. Ar. Nakir hollowed. Source: Websters Dictionary (01 Mar 1998) |
| nacreous | Consisting of, or resembling nacre, pearly, lustrous, like mother-of-pearl; descriptive term for bacterial colonies. Origin: Fr. Nacre, mother-of-pearl (21 Jun 2000) |
| nacreous ichthyosis | A variant of ichthyosis characterised by dry pearly scales. (05 Mar 2000) |
| NAD | <enzyme> Coenzymes that act as electron and hydrogen carriers in some oxidation-reduction reactions. (09 Oct 1997) |
| NAD 3 alpha-hydroxy-5 alpha-pregnan-20-one-oxidoreductase | <enzyme> From rat liver microsomes Registry number: EC 1.1.1.- Synonym: nad-3-hp-20-oor (26 Jun 1999) |
| NAD synthetase | <enzyme> Consider also EC 6.3.5.1 Registry number: EC 6.3.1.5 Synonym: nad synthase (26 Jun 1999) |
| NAD transferase | <enzyme> Catalyses phosphorylation of host bacterial proteins Registry number: EC 2.7.7.- (26 Jun 1999) |
| NAD(P)+ nucleosidase | <enzyme> An enzyme hydrolyzing NAD(P)+ to release free nicotinamide and adenosinediphosphoribose(phosphate). (05 Mar 2000) |