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aucer. -- Word blindness (Physiol.), inability to understand printed or written words or symbols, although the person affected may be able to see quite well, speak fluently, and write correctly. Landois & Stirling. -- Word deafness (Physiol.), inability to understand spoken words, though the person affected may hear…

densed to a liquid boiling at -109º C., and to a solid which volatilizes without melting. Symbol Xe or X; atomic weight 130.2.

ed with the letters separate or, oftener, in a monogram, often inclosed in a circle, as a symbol or emblem of Christ. It use as an emblem was introduced by Constantine the Great, whence it is known as the Constantinian symbol, or monogram. See Labarum.

The symbol under which Sakti, or the personification of the female power in nature, is worshiped. Cf. Lingam.

metimes associated with yttrium or other related elements, as in euxenite and gadolinite. Symbol Yb; provisional atomic weight 173.2. Cf. Yttrium.

group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. Symbol Y. Atomic weight, 89. [Written also ittrium.]

g 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…

m the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.

A figure representing the signs, symbols, and constellations of the zodiac.