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VIRIPOTENT

Marriageable.

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VISUOMETER

An apparatus for determining range of vision.

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VOLTAGE

Electromotive strength measured in volts.

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VISC0S1METER

An instrument or apparatus for determining viscosity.

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VERBENA OIL

is distilled from the leaves of Verbena tryphilla, grown in France and Spain, and contains from 21 to 38 per cent, of citral. The Indian oil comes from the grasses Andropogm citratus and A.flexuosus, its chief constituent being citrol. Its sp. gr. is 0877 to 0905 rotation, + 30 to 30; and it contains from 75 to 85 per cent, citial.

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VACCINIA

Cowpox. If the human subject be inoculated will cowpox, a small papule appears at the site of inoculation in from one to three days, which becomes a vesicle about the fifth day, and at the end of the first week is pustular, umbilicated, and surrounded by a red areola. Desiccation begins in the second week and a scab forms, which soon falls off, leaving a pitted cicatrix.

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VACUOLE

1 biology : It is som times spoken of gastric, from having in some way direct connection with the function of digestion; the cavity in a plant-cell containing cell-sap.’

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VAGOSYMPATHICUS

In comparative anatomy the conjoined vagus and sympathetic nerves.

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VANADIFEROUS

Yielding or containing vanadium.

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VASELON

An ointment base consisting of a mixture of margaron and stearon dissolved in mineral oil.

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