NINSI 



3-1 



NODUS 



in immersion of the dried films in ether, in absolute 

 alcohol, or in a mixture of equal parts of the two. 



Ninsi, Ninsin, Ninsing, Ninzi, Nmzin. Japanese 

 names for ginseng. 



Niobate (ni'-ob-dt ). A salt of niobic acid. 



Niobic \ni-</-bik). Containing niobium as a pentad 

 radicle. 



Niopa [Venezuelan name]. A snuff prepared from the 

 seeds of Piptadenia peregrina, Benth., which produces 

 an intoxication approaching frenzy. Syn., A «/></. 



Nipple. (See Illus. Diet.) N. Crater. ' See A'., Re- 

 tracted (Illus. Diet.). 



Nirmali (tiir-mah f -le). Strychnos potatorum (a. v.). 



Nirvanin t n:r---. m'-in). The hydrochlorate of diethyl- 

 glycocoll-para-amido-o-oxy-benzoic-methyl-ester ; col- 

 orless prisms soluble in water and fusing at 185 C. 

 It is a local anesthetic, one-tenth as toxic as cocain, 

 used by Schleichs infiltration method in0.5%-0.2<& 

 solution; in dentistry, in 2^-5^ solution. 



Nissl Bodies. See under Body. 



Nitragin \ni-traj f -in). A nitrifying bacterial ferment 

 obtained from the root tubercles of leguminous plants. 



Nitricum (ni' -trik-um) . Berzelius' name for an im- 

 aginary body which he supposed united with oxygen 

 to form nitrogen. 



Nitrifying {ni-trif-i' '-ing) \yirpav, natron ; facere, to 

 make]. Applied to bacteria which oxidize ammonia 

 to nitrous and nitric acids. 



Nitrobenzolism (tii-tro-ben f -zol-izni). Poisoning by 

 nitrobenzol through ingestion of some liquor containing 

 it, or through inhalation of its vapor, or through cutane- 

 ous absorption ; it is characterized by a bluish-green 

 pigmentation of the skin, the odor of bitter almonds on 

 the breath, brown color of the urine ; in light cases by 

 headache and vomiting ; in severe cases, by coma, dila- 

 tion of the pupils, anesthesia, irregularity of the pulse, 

 and convulsions. 



Nitroerythrol ni-tro-er , -ithro!\. C 4 H 6 (NOj) 4 . Butine 

 tetranitrate, obtained by dissolving erythrite in nitric 

 acid ; large glistening plates, melt at 6i° C. It ex- 

 plodes on percussion ; used as nitroglycerin. 



Nitrogen. (See Illus. Diet.) N. Benzid, Mitscher- 

 lich's name for azobenzene. N. -equilibrium, the 

 state of an animal in which, during a definite period, 

 the nitrogen of the excreta equals in amount the nitro- 

 gen of the food. N. Monoxid. See Xitrous Oxid 

 (Illus. Diet.). N. Pentoxid, NjO s . nitric anhydrid, 

 a white solid, crystallizing in rhombic crystals or six- 

 sided prisms. It decomposes with explosive violence, 

 if heated, into nitrogen peroxid and oxygen. It pos- 

 sesses powerful oxidizing properties. N. Peroxid, 

 N. Tetroxid, NO., a liquid at ordinary temperature 

 obtained by action of nitrosyl chlorid on silver nitrite 

 heated to 40 C. It is antiseptic. 



Nitroglucose {ni-tro-glu' -kos). A substance obtained 

 from glucose by action of nitric and sulfuric acids. It 

 is used as an arterial stimulant. Dose of 5 $ solution, 

 ! +-i TTi^ (0.016-0.65 c.c.). 



Nitroglycerinism (ni-tro-g/is'-ur-in-izm). Poisoning 

 by nitroglycerin ; in light cases marked by dizziness, 

 pulsation of the temporal arteries, and continuous 

 headache ; in severe cases by coma, vomiting, dyspnea, 

 delirium, and edema. 



Nitrolevulose ni-tro-leS -u-loz). Dextrose nitrate. It 

 has properties similar to nitroglycerin. 



Nitromonas (ni-tro-mo'-nas) [virpov, natron; uoi-aq, 

 unit]. A group of bacteria established by Winogradsky 

 (1892) and referred by Migula to the genus Pseudo- 

 monas. They occur in the soil and convert ammonium 

 salts into nitrites and nitrites into nitrates. They will 

 not grow in gelatin or other organic media. 



iNitropropiol (ni-tro-pro' -pe-ol ). A preparation of 



orthonitrophenyl propiolic acid and sodium carbonate. 

 It is used for detecting the presence of sugar in the 

 urine. See under Test. 



Nitrosalol {ni-tro-sa'-lol). C s H 4 (OH)CO, . C«H 4 NO r 

 A yellowish powder melting at 148 C, soluble in 

 alcohol or ether, insoluble in water ; it is used in mak- 

 ing salophen. 



Nitrosobacter(n/-//'o-j<^a>& / -/«r). A rod-like form of 

 nitrifying bacteria. 



Nitrosobacteria \ni-tro-so-bak-te f -re-ah}. Nitrifying 

 bacteria. See Xitromonas. 



Nitrosococcus (nitro-so-iok'-us), A coccous form of 

 nitrifying bacteria. Cf. Xitromonas. 



Nitrosoconiin {ni-tro-so-ko / -ni-iri). See Azoconydrin. 



Nitrosomonas (ni-tro-so-my-nas). A nitrifying bacte- 

 rium. Cf. Xitromonas. 



Nitrosophenyldimethylpyrazol {ni-tro-so-fen-il-di- 

 meth-il-pir / -az-ol ). C n H n i NO)N,0. A substance 

 obtained as a reaction-product of a solution of sodium 

 nitrite with a solution of antipyrin in acidulated water; 

 green needles soluble in alcohol, ether, chloroform, or 

 alkalis; explodes at 200 C. It is antipyretic, anal- 

 gesic, and diuretic. Syn., Isonitrosoantipyrin. 



Nitrosyl (ni'-tro-sil). NO. A univalent or trivalent 

 radicle found in nitrous acid. N. Chlorid, NO . CI, 

 an orange-yellow gas. N. Sulfate, HSNQ 5 , a nitrosyl 

 substitution derivative of sulfuric acid ; recommended 

 as a disinfectant. 



Nitroxyl (ni-trohs'-i/). NO,. A univalent radicle 

 found in nitric acid. 



Noctiphobia (nok-te-fo'-be-aJi) \nox, night; p63oc, 

 fear]. Morbid fear of night and its darkness and 

 silence; at times a distressing accompaniment of 

 neurasthenia. 



Node. (See Illus. Diet,) N.s, Fereol's. See Nodo- 

 sities, FerioP s. N.s, Haygarth's, nodosities of the 

 joints in arthritis deformans. N.s, Heberden-Rosen- 

 bach's, Heberden's nodes. N., Hensen's. See 

 Knot, Hensetis (Illus. Diet). N., Legendre's. 

 See Xodosities, Bouchard's (Illus. Diet.). N.s, 

 Singer's, N.s, Teacher's. See Chorditis nodosa. 



Nodosity. (See Illus. Diet.) N.s of Fereol, incon- 

 stant subcutaneous nodosities observed in cases of acute 

 articular rheumatism. N. of the Joints. Synonym 

 of Osteoarthritis. N., Legendre's. See X., Beu- 

 chard's (Illus. Diet.). N.s, Meynert's, nodular 

 growths connected with the capsules of joints, tendons, 

 and tendon sheaths, and sometimes seen in cases of 

 rheumatism, especially in children. N.s, Piedric, 

 those characteristic of piedra, a disease of the hair, due 

 to a parasitic fungus. 



Nodular. iSee Illus. Diet.) N. Disease of the 

 Intestines of Sheep and Cattle, a nodular forma- 

 tion in the small and large intestines caused by young 

 stages of (Esophagostoma columbianum. 



Nodule. (See Illus. Diet.) N., Endolymphangeal, 

 small nodules formed within lymphatic vessels by 

 localized masses of adenoid tissue. N.s, Katchenko's 

 Cell-, decidual and syncytial tissue detached from the 

 decidua in the manner of buds. N., Lymph-, 

 more correct term for lymph follicle. N.s, Lymph- 

 angeial, N.s, Lymphatic, N.s, Lymphoid, local- 

 ized masses of adenoid tissue formed in various parts 

 of the body and consisting of branched nucleated cor- 

 puscles, holding lymphoid cells in the spaces between 

 them. N., Perilymphangeal, small nodules formed 

 around lymphatic vessels by localized masses of lymph- 

 oid cells. N., Pulp. See Pulp-nodult. 



Nodus. (See Illus. Diet.) Nodi digitorum. [He- 

 berden.] Synonym of Osteoarthritis. N. thalami of 

 Luys. See Xucieus, LuyS (Illus. Diet.). N. 

 vitalis. See Center, Respiratory (Illus. Diet.). 



