ZALAMBDODONT 



1627 



ZINC 



.lambdodont (za-lam' '-do-donf) [£a, intensive ; %d/i- 

 . the letter /. ; bdovq, tooth]. In biology, having 

 short molar teeth with one V-shaped ridge. 

 Zalefski's Method. For ascertaining the presence of 

 iron compounds in the liver or other tissues. The 

 tissues are treated in bulk instead of in separate sec- 

 tions. The methods are as follows : (a) Ammonium- 

 sulphid Method, (i) The pieces of tissue are left in 

 er cent, alcohol for twenty-four hours. (2) They 

 are then hardened for twenty-four hours in 96 per cent, 

 alcohol, to which a few drops of strong, yellow am- 

 monium sulphid have been added. They must be 

 shaken up from time to time. (3) They are next 

 lardened in absolute alcohol, to which several drops 

 ammonium sulphid are added. (4) They may 

 en be cut. The alcohol should completely fill the 

 ttle; corks must not be used, because they give 

 iron reaction with ammonium sulphid. (b) Potas- 

 m-ferrocyanid Method. (1) The pieces are left in 

 per cent, alcohol for twenty-four hours. (2) They 

 then placed for two or three days in a I per cent, 

 lution of potassium ferrocyanid in 96 per cent, alco- 

 1. (3) They are then kept in a I per cent, solution 

 potassium ferrocyanid in 65 per cent, alcohol. (4) 

 ey are now placed in I or 2 per cent, acid alcohol 

 cohol, 96 per cent.) for two or three days. (5) 

 e sections may then be cut and may afterward be 

 ined in carmin. Treatment with 65 per cent, alcohol 

 in 3) is employed to aid the penetration of the acid 

 d subsequently. Y ox ferrous compounds potassium 

 ferrocyanid may be similarly used. 

 Zamia [za / - me- ah) [L.]. A genus of cycadaceous 

 plants. Z. integrifolia, of Florida, and some West 

 Indian species, afford a kind of sago, known incor- 

 rectly as arrowroot. 

 Zanaloin za-nal' '-o-iri) [Zanzibar ; a/jorj, aloes]. The 



aloin derived from Zanzibar aloes. 

 Zante Currants (zan' 'te-kur* '-ants). See Uvce passes 



minores. 

 Zaraath [za'-ra-atk) [Heb.]. The Hebrew term for 



rosy. 

 Zarathan [zar-ath'-an). Scirrhous hardening of the 



breast . 

 Zea [ze'-ah) [££«, a sort of grain]. A genus of grasses. 

 Z. mays, Maize, Indian Corn. The stigmata of 

 maize or ' : corn silk" [Stigmata maydis) have an ac- 

 tive principle thought to be an organic (maizenic) acid. 

 It is a mild diuretic, used with success in incontinence 

 of urine and rheumatism. Dose of the fld. ext. 5jj— 

 ij. All unof. 

 Zedoary (zed'-o-a-re). An East Indian drug or spice, 



!the rhizome of Curcuma zedoaria and C. aromatica. 

 It resembles ginger, but is less agreeable, and is not 

 much used in medicine. Unof. 



Zein :'-/;/) [~m, maize]. A yellowish, soft, insipid 

 proteid obtained from maize. 



Zeismus {ze-iz'-mus) \_lia, a sort of grain]. Pellagra 

 caused by a diet of maize. 



Zeiss's Glands. See Gland. 



Zeissian Sty. See Hordeolum. 



Zelotypia 1 zel- o - tip'-e-a ) [ 0'//oc, zeal ; tvtcteiv, to 

 strike]. Morbid or monomaniacal zeal in any pursuit. 



Zelotypic (zel-o-tip 1 '-ik) \_'f/7oc, zeal ; tv-teiv, to strike]. 

 Characterized by or pertaining to zelotypia. 



Zenker's Degeneration. A peculiar form of degene- 

 ration of the muscular fibers of the body, by which 

 they are rendered extremely brittle, so that they readily 

 give way if the muscle be forcibly contracted. This 



degeneration is liable to occur in cases of continued or 

 high fever, and is not uncommon in typhoid fe\er. 

 See Degeneration, and Signs and Symptoms, Table of. 



Zenkerism [zen'-ker-izm) [after Zenker, an anatomist]. 

 The condition of Zenkers degeneration. 



Zeorine (ze / -o-rin) [zeora, a genus of lichens]. In 

 biology, denoting, in lichens, an apothecium in which a 

 proper exciple is inclosed in the thallineexciple. 



Zeoscope ize'-o-skop) [ffetv, to boil ; cuo-dv, to view]. 

 An apparatus for determining the alcoholic strength of 

 a liquid by means of its boiling-point. 



Zero \ze'-ro) [origin obscure]. Any character denoting 

 absence of quantity. In physics, the point from 

 which thermometers are graduated. Z., Natural, the 

 temperature to which the earth would fall were the 

 heat of the sun withdrawn entirely. 



Zerumbet (ze-rum'-bel) [E. Ind.]. An E. Indian drug 

 or spice, by some asserted to be the same as cassi- 

 muniar ; probably the rhizome of Zingiber zerumbet. 

 It resembles ginger ; little used. Unof. 



Zest [OF. , zeste, one of the partitions which divide the 

 kernel of a walnut]. The expressed oil of the peel of 

 the orange or lemon. 



Zestocausis (zes-to -kaw'-zis) [Cectoc, boiling ; Ka'nv, 

 to burn]. Cauterization with instruments heated by 

 steam. 



Zestolusia (zes-to-lu'-ze-ah) \Zeczoc, boiling hot ; /.nietv, 

 to wash]. Washing with boiling or nearly boiling water. 



Zeugite [tu'-gU). See Zygite. 



Zibet (zib'-et) \zibethum ; gen., Zibethi\ A variety rf 

 civet produced by Vhxrra zibet ha, an animal of S. E. 

 Asia. It was formerly used as a substitute for musk. 



Zimb (zim) [Ar. , ami, a fly]. See Glossina morsitans 

 and Pangonia , under Parasites [Animal), Table of. 



Zimmermann, Elementary Particles, or Corpuscles 

 of. Minute, colorless, highly refractive particles en- 

 countered floating in the liquor sanguinis ; blood- 

 plates. Cf. Granules of Max Schultze. 



Zimocca Sponge [zi-mok'-ah). A sponge of fine 

 grade, Euspongia zimocca. 



Zinalin (zin'-al-in^, C^H^N.jOg. A yellow coloring- 

 matter obtained from anilin by the action of nitrous acid. 



Zinc, Zincum {zin^k, zingk'-um) [L. : gen., Zini ]. 

 Zn— 64.9; quantivalence II. A metallic element with 

 a lead-like luster. It is represented in medicine by sev- 

 eral of its salts, all of which are more or less poisonous. 

 In small doses it is tonic and astringent ; in larger quan- 

 tities, a strong emetic. It is used mainly in the form of 

 lotions in conjunctivitis, in various catarrhs, and certain 

 skin-diseases. See Elements, Table of. Z., acetas, Zn 

 (C 2 H S 2 ) 2 .3H 2 0. Dose, internally, gr. %— ij ; as lotion, 

 gr. ij to 3J of water. Z., Aerated. See Zinc Carbon- 

 ate. Z. bromidum, ZnBr 2 , zinc bromid. Dose gr. ^ to 

 ij. Z., Butter of. See Z. Chlorid. Z. carbonas prae- 

 cipitat., (ZnCO s ) 2 .3Zn(HO) 2 , dusted over wounds as 

 a protection. Z. Carbonate. See Pigments, Con- 

 spectus of. Z. chloridum, ZnCl 2 , tonic and escha- 

 rotic. Dose, internally, gtt. iv-viij of 'a % ss to 

 J^iij solution in spt. retheris ; as a collyrium, gr. j-ij 

 to J5J of water. Z. Chloridum, Liq.. ! 2 to I 

 per cent, in strength. Z. -colic. See Colic. Z., 

 Flowers of. See Z. Oxid. Z. -green. See Pig- 

 ments, Conspectus of. Z. iodidum, Znl 2 . Dose gr. 

 ss— ij. Z. lactas, Zn 2 C;,H 4 O v Used in epilepsy. 

 Dose gr. ij-x. Z. oleat., Ung. (B.P.), oleate of 

 zinc and soft paraffin. Z. oxidum, ZnO. Dose 

 gr. j-x. Z. oxidum, Ung., 20 per cent, in ben- 

 zoinated lard. Z. oxychloridum, a dental filling- 



