| NMOS | N-type metal oxide semiconductor |
|---|---|
| NO | narcotics officer; nitric or nitrous oxide; none obtained; nonobese; nurse's office |
| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise s... |
| 4NQO | 4-nitroquinoline 1-oxide |
| OX | optic chiasma; oxacillin; oxalate; oxide; orthopedic examination; oxytocin |
| ethyl oxide | CH3CH2OCH2CH3;a flammable, volatile organic solvent used in extraction procedures; formerly widely used as an inhalation anaesthetic; shortcomings include: irritating vapor, slow onset and prolonged recovery phase, explosion hazard. Synonym: ethyl ether, ethyl oxide, sulfuric ether. (05 Mar 2000) |
|---|---|
| zinc oxide | <chemical> A mild astringent and topical protectant with some antiseptic action. It is also used in bandages, pastes, ointments, dental cements, and as a sunblock. Pharmacological action: dermatologic agents, sunscreening agents. Chemical name: Zinc oxide (ZnO) (12 Dec 1998) |
| zinc oxide and eugenol | Used as a base material beneath metallic dental restorations and as a temporary filling material or impression material; setting and hardening result from complex reactions between the powder and the eugenol. (05 Mar 2000) |
| zinc oxide-eugenol cement | Least irritating of the cements. The powder is essentially zinc oxide with strengtheners and accelerators. The liquid is basically eugenol. (boucher's clinical dental terminology, 4th ed, p50) (12 Dec 1998) |
| zirconium oxide | Used as a coating for the skin in dermatologic pharmaceuticals and as a pigment in paints. (05 Mar 2000) |
| unmodified zinc oxide-eugenol cement | A dental cement obtained by mixing zinc oxide and eugenol without modifiers. (05 Mar 2000) |
| ferric oxide | A compound used as a colouring material. (05 Mar 2000) |
| 4-hydroxyaminoquinoline-1-oxide | <chemical> N-hydroxy-4-quinolineamine 1-oxide. A potent mutagen and carcinogen. It is a reduction product of 4-nitroquinoline-1-oxide. It binds with nucleic acids and inactivates both bacteria and bacteriophage. Pharmacological action: carcinogens, mutagens. Chemical name: 4-Quinolinamine, N-hydroxy-, 1-oxide (12 Dec 1998) |
| 4-nitroquinoline-1-oxide | <chemical> 4-nitroquinoline 1-oxide. A potent mutagen and carcinogen. This compound and its metabolite 4-hydroxyaminoquinoline-1-oxide bind to nucleic acids. It inactivates bacteria but not bacteriophage. Pharmacological action: carcinogens, mutagens. Chemical name: Quinoline, 4-nitro-, 1-oxide (12 Dec 1998) |
| 7,8-dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide | <chemical> 7,8,8a,9a-tetrahydrobenzo(10,11)chryseno (3,4-b)oxirene-7,8-diol. A benzopyrene derivative with carcinogenic and mutagenic activity. Pharmacological action: carcinogens, mutagens. Chemical name: Benzo(10,11)chryseno(3,4-b)oxirene-7,8-diol, 7,8,8a,9a-tetrahydro- (12 Dec 1998) |
| lead oxide | Has been used as an ingredient in external applications such as lead plaster. Synonym: lead oxide (yellow), litharge, massicot. (05 Mar 2000) |