ZAFFEE 



349 



ZODIAC 



Z. 



Zaffre, (zaf fer). A mineral: chiefly oxide of 

 cobalt; also called Zaphara. 



Zambo, (zaui'bo). Offspring of red and black 

 parents; also used for the child of a mulatto 

 and a negro. 



Zamboni's pile, A dry pile (v. Pile), in which 

 binoxide of manganese, and tin or silver are 

 used. 



Zamia, (za'mi-a). [L. zamia, loss.] A tree be- 

 longing to Cycadaceae. Z. co$Va=Bread tree. 



Zannichellia, (zan-i-chelli-a). [Sig. Zanni- 

 chelli.) Homed pond-weed: a plant belong- 

 ing to NaiadacesB. 



Zanonia, (za-no'ni-a). [Sig. Zanoni, of Bo- 

 logna.] A plant belonging to Cucurbitaceae. 

 Z. 7ncZica=Bandolier= Indian cucumber. 



Zapornia, (za-por'ni-a). Spotted crake: a bird 

 belonging to Rallidae. 



Zea, (ze'a). [The Latin name.] A plant be- 

 longing to Grammacese; also called Maize and 

 Indian corn. 



Zealand. NewZ.,fiax= 

 Phormium, q.v. New 

 Z. porcupine = Myr- 

 mecophaga aculeata. 



Zebeck. v. Xebec. 



Zebra, (zo'bra). [The 

 Spanish name. ] = 

 Asinus Zebra: a horse- 

 like animal, white, 

 with black bands, 

 found in S. Africa. Zebra. 



Zebu, (ze-bo'). [The Hindoo uame.] = Bos 

 Indicus : an ox-like 

 animal belonging to 

 Bovidae. 



Zechstein=:Mine stone: 

 the German represen- 

 tative of Upper Per- 

 mian strata. 



Zenith, (zen'ith). [Cor- 

 ruption of Arabic 

 Semt-ur-ras, vertical 

 place.] The point of 

 the heavens directly overhead ; ef. Nadir. Z. 

 discmce=Angnlar distance from the zenith. 



Zeolites, (ze'6-llts). [Gk. zeo, to boil.] Sili- 

 cates of alumina, lime, &c., which boil when 

 strongly heated. Needle Z.=Natrolite. Z. 

 group of minerals: includes analcite, iiatro- 

 lite, stilbite, and chabazite; silicates of alu- 

 mina, &c., found in volcanic districts. 



Zero, (zS'ro). [It. zero, naught.] In Centi- 

 grade and Reaumur's scales=Freezing point 

 of water: in Fahrenheit's 8cale=32 below 

 freezing point of water. Absolute Z.= 

 273 C., at which temperature any given 

 body is supposed to contain no heat. Gene- 

 rally, zero is of any scale. 



Zeuglodon, (zu'glo-don). [Gk. zeugle, yoke- 

 strap; odous, tooth. ]=Basilosaurus : an ex- 

 tinct cetacean animal, about 70 ft. long, 

 whose teeth were in two groups united by a 

 band; known by fossil remains, found in 

 Eocene strata of America. 



Zeus, (ze'us). A fish belonging to Scombridae. 

 Z./u6er=Dory. 



Zinc, (zingk). [Zinl; the German word.]= 

 Zn"=Spelter: one of the magnesian metals; 

 a hard bluish crystalline metal, much used 

 to coat sheet-iron with, and as a constituent 

 in brass. Z. carbon battery ='Bunaeu' a bat- 

 tery. Z. ethyl=Zn(C<>H.5fo. an odorous trans- 

 parent liquid, which ignites in contact with 

 air. Z. glance = Siliceous calamine. Z. 

 group of minerals: includes calamine, smith- 

 sonite, and blende. Z. methyL=Zn(Cll^: a 

 volatile strongly odorous liquid, which takes 

 fire in contact with air, and explodes iix 

 oxygen. Z. spor=Calamine. 



Zincic, (zin'sik). [Zinc, q.v.] Related to zinc. 

 Z. sulphide=Bleude. 



Zincography, (zing-kog'ra-fi). [Zinc, q.v. ; Gk. 

 graplio, I write.] Engraving on zinc plates, 

 used for printing maps, plans, writings, &c. 

 Photo-Z.: a process by which a photographic 

 print is transferred to a zinc plate, and en- 

 graved for printing from. 



Zingari=Gipsie8, q.v. , 



Zingiber, (zin'ji-br). [The Latin" name.]= 

 Ginger: a tree belonging to Zingiberaceae. 



Zingiberaceae, (zin-jib'er-a-se-e). [Ziugiber, 

 q.v.] = Ginger-worts: herbaceous aromatic 

 plants, with creeping rhizome . and ; gay 

 flowers, belonging to Amomales. 



Ziphius. A cetacean animal. 



Zircon, (zer'kon). [The Cingalese"word.]= 

 Zirconic silicate: a mineral from which zir- 

 conium is obtained. 



Zirconia, (zer-ko'ni-a).^ [Zircon,'5.v.]=ZrO2: 

 oxide of zirconium. 



Zirconium, (zer-ko'ni-tim). * [Zircon, q.v.]= 

 Zr"": one of the silicon group of elements; 

 a rare metal. 



Zoa, (zo'a). [Gk. zoon, animal.] J Aristotle's 

 term for all animals. 



Zoanthida, (zo-anth'i-da). [Gk. zoon, animal; 

 anthos, flower; eidox, form.] Intermediate 

 between Acrita and Radiata in M'Leay's 

 arrangement, q.v. 



Zoantharia,(z5-an-tha'ri-a). [Gk. zoon, animal; 

 anthos, flower.] 1. A general term for helian- 

 thoid polypes,named from their flower-like ap- 

 pearance. 2. De Blainville's term for Actiniae. 



Zoarces. A fish belonging to Gobiidse. Z. vivi- 

 parus= Viviparous blenny, also called Green- 

 bone, which brings forth its offspring alive. 

 | Zodiac, (zo'di-ak). [Zodiakos, the Greek word.] 



A zone of the hea- N 



| vens, which includes 

 all the apparent 

 motions of the Sun, 

 Moon, and greater 

 planets. It is di- 

 vided into twelve 

 equal portions, each 

 called a sign ; of 

 these the names are 

 as follows, three 

 belonging to each Zodiac. 



