Part 40

||Zil"lah (?), n. [Ar. zila.] A district or local division, as of a province. [India]

||Zimb (?), n. (Zoöl.) A large, venomous, two-winged fly, native of Abyssinia. It is allied to the tsetse fly, and, like the latter, is destructive to cattle.

Zim"ent-wa`ter (?), n. [G. cement- wasser. See Cement.] A kind of water found in copper mines; water impregnated with copper.

Zinc (zk), n. [G. zink, probably akin to zinn tin: cf. F. zinc, from the German. Cf. Tin.] (Chem.) An abundant element of the magnesium-cadmium group, extracted principally from the minerals zinc blende, smithsonite, calamine, and franklinite, as an easily fusible bluish white metal, which is malleable, especially when heated. It is not easily oxidized in moist air, and hence is used for sheeting, coating galvanized iron, etc. It is used in making brass, britannia, and other alloys, and is also largely consumed in electric batteries. Symbol Zn. Atomic weight 64.9. [Formerly written also zink.]

Butter of zinc (Old Chem.), zinc chloride, ZnCl2, a deliquescent white waxy or oily substance. -- Oxide of zinc. (Chem.) See Zinc oxide, below. -- Zinc amine (Chem.), a white amorphous substance, Zn(NH2)2, obtained by the action of ammonia on zinc ethyl; -- called also zinc amide. -- Zinc amyle (Chem.), a colorless, transparent liquid, composed of zinc and amyle, which, when exposed to the atmosphere, emits fumes, and absorbs oxygen with rapidity. -- Zinc blende [cf. G. zinkblende] (Min.), a native zinc sulphide. See Blende, n. (a). -- Zinc bloom [cf. G. zinkblumen flowers of zinc, oxide of zinc] (Min.), hydrous carbonate of zinc, usually occurring in white earthy incrustations; -- called also hydrozincite. -- Zinc ethyl (Chem.), a colorless, transparent, poisonous liquid, composed of zinc and ethyl, which takes fire spontaneously on exposure to the atmosphere. -- Zinc green, a green pigment consisting of zinc and cobalt oxides; -- called also Rinmann's green. -- Zinc methyl (Chem.), a colorless mobile liquid Zn(CH3)2, produced by the action of methyl iodide on a zinc sodium alloy. It has a disagreeable odor, and is spontaneously inflammable in the air. It has been of great importance in the synthesis of organic compounds, and is the type of a large series of similar compounds, as zinc ethyl, zinc amyle, etc. -- Zinc oxide (Chem.), the oxide of zinc, ZnO, forming a light fluffy sublimate when zinc is burned; -- called also flowers of zinc, philosopher's wool, nihil album, etc. The impure oxide produced by burning the metal, roasting its ores, or in melting brass, is called also pompholyx, and tutty. -- Zinc spinel (Min.), a mineral, related to spinel, consisting essentially of the oxides of zinc and aluminium; gahnite. -- Zinc vitriol (Chem.), zinc sulphate. See White vitriol, under Vitriol. -- Zinc white, a white powder consisting of zinc oxide, used as a pigment.

Zinc, v. t. [imp. & p. p. Zincked or Zinced (&?;); p. pr. & vb. n. Zincking or Zincing (&?;).] To coat with zinc; to galvanize.

Zinc"ane (?), n. (Chem.) Zinc chloride. [Obs.]

Zinc"ic (?), a. (Chem.) Pertaining to, containing, or resembling, zinc; zincous.

Zinc"ide (?), n. A binary compound of zinc. [R.]

Zinc*if"er*ous (?), a. [Zinc + -ferous.] Containing or affording zinc.

Zinc`i*fi*ca"tion (?), n. The act or process of applying zinc; the condition of being zincified, or covered with zinc; galvanization.

Zinc"i*fy (?), v. t. [Zinc + - fy.] (Metal.) To coat or impregnate with zinc.

Zinc"ite (?), n. (Min.) Native zinc oxide; a brittle, translucent mineral, of an orange- red color; -- called also red zinc ore, and red oxide of zinc.

{Zinck"ing, or Zinc"ing (?) }, n. (Metal.) The act or process of applying zinc; galvanization.

Zinck"y (?), a. Pertaining to zinc, or having its appearance. [Written also zinky.]

Zin"co- (?). A combining form from zinc; in chemistry, designating zinc as an element of certain double compounds. Also used adjectively.

Zinc"ode (?), n. [Zinc + - ode, as in electrode.] (Elec.) The positive electrode of an electrolytic cell; anode. [R.] Miller.

Zin*cog"ra*pher (?), n. An engraver on zinc.

{ Zin`co*graph"ic (?), Zin`co*graph"ic*al (?), } a. Of or pertaining to zincography; as, zincographic processes.

Zin*cog"ra*phy (?), n. [Zinco- + -graphy.] The art or process of engraving or etching on zinc, in which the design is left in relief in the style of a wood cut, the rest of the ground being eaten away by acid.

Zinc"oid (?), a. [Zinc + - oid.] Pertaining to, or resembling, zinc; -- said of the electricity of the zincous plate in connection with a copper plate in a voltaic circle; also, designating the positive pole. [Obs.]

Zin`co-po"lar (?), a. [Zinco- + polar.] (Elec.) Electrically polarized like the surface of the zinc presented to the acid in a battery, which has zincous affinity. [Obs.]

Zinc"ous (?), a. 1. (Chem.) (a) Of, pertaining to, or containing, zinc; zincic; as, zincous salts. (b) Hence, formerly, basic, basylous, as opposed to chlorous.

2. (Physics) Of or pertaining to the positive pole of a galvanic battery; electro-positive.

||Zin"ga*ro (?), n.; pl. Zingari (#). [It.] A gypsy.

Zing"el (zng"el), n. (Zoöl.) A small, edible, freshwater European perch (Aspro zingel), having a round, elongated body and prominent snout.

Zin`gi*ber*a"ceous (zn`j*br*"shs), a. [L. zingiber ginger. See Ginger.] (Bot.) Of or pertaining to ginger, or to a tribe (Zingibereæ) of endogenous plants of the order Scitamineæ. See Scitamineous.

Zink (zk), n. (Chem.) See Zinc. [Obs.]