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ZIRCONIA

Zirconium oxid, Zr02.

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ZOOTROPHOTOXISM

Husemann

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ZINCCOPPER COUPLE

Zinc coated with metallic copper, capable of decomposing water at its boilingpoint with evolution of hydrogen and formation of zinc oxide. It can also be employed to break up a number of organic liquids by electrolytic action.

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ZOMOL

Name applied by Hericourt Evaporated to dryness it is used as a concentrated food. Dose, IO gm. daily.

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ZOSTERIC

Relating to herpes zoster.

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ZINC DUST

is a fine grey powder susceptible of rapid oxidation and fit ing; in great request in dyeworks as a reducing agent. It consists of 40 per cent, zinc, 2Jper cent lead, 4 per cent, cadmium, 50 per cent, zinc oxide, and 3?, per cent, zinc carbonate.

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ZOMOTHERAPY

Richet and liericourt

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ZOSTERIFORM

Resembling herpes zoster.

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ZEOLITES

are natural deposits of an opaque vitreous character abundantly diffused in nature, which may be described as double hydrated silicates of aluminium and calcium. When treated with acids they partially dissolve, leaving the silica in a gelatinous state. Stilbite and analcime are two zeolites.

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ZAHARBAD

Vernacular for trypanosomiasis.

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